diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/RustClientCodegen.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/RustClientCodegen.java
index 351282d5cc5..6a944b06260 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/RustClientCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/RustClientCodegen.java
@@ -206,6 +206,8 @@ public class RustClientCodegen extends AbstractRustCodegen implements CodegenCon
         typeMapping.put("date", "string");
         typeMapping.put("DateTime", "String");
         typeMapping.put("password", "String");
+        typeMapping.put("decimal", "String");
+
         // TODO(bcourtine): review file mapping.
         // I tried to map as "std::io::File", but Reqwest multipart file requires a "AsRef<Path>" param.
         // Getting a file from a Path is simple, but the opposite is difficult. So I map as "std::path::Path".
diff --git a/modules/openapi-generator/src/test/resources/3_0/rust/petstore.yaml b/modules/openapi-generator/src/test/resources/3_0/rust/petstore.yaml
index 97ead87c5e4..acad24abb04 100644
--- a/modules/openapi-generator/src/test/resources/3_0/rust/petstore.yaml
+++ b/modules/openapi-generator/src/test/resources/3_0/rust/petstore.yaml
@@ -871,6 +871,7 @@ components:
         - boolean
         - uuid
         - bytes
+        - decimal
       properties:
         int32:
           type: integer
@@ -894,6 +895,9 @@ components:
         bytes:
           type: string
           format: byte
+        decimal:
+          type: string
+          format: number
     Return:
       description: Test using keywords
       type: object
diff --git a/samples/client/petstore/rust/hyper/petstore/docs/TypeTesting.md b/samples/client/petstore/rust/hyper/petstore/docs/TypeTesting.md
index 4f650eb1aa2..393d1b9bd27 100644
--- a/samples/client/petstore/rust/hyper/petstore/docs/TypeTesting.md
+++ b/samples/client/petstore/rust/hyper/petstore/docs/TypeTesting.md
@@ -12,6 +12,7 @@ Name | Type | Description | Notes
 **boolean** | **bool** |  | 
 **uuid** | [**uuid::Uuid**](uuid::Uuid.md) |  | 
 **bytes** | **String** |  | 
+**decimal** | **String** |  | 
 
 [[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
 
diff --git a/samples/client/petstore/rust/hyper/petstore/src/models/type_testing.rs b/samples/client/petstore/rust/hyper/petstore/src/models/type_testing.rs
index dba87bdb3cf..9e797e82298 100644
--- a/samples/client/petstore/rust/hyper/petstore/src/models/type_testing.rs
+++ b/samples/client/petstore/rust/hyper/petstore/src/models/type_testing.rs
@@ -34,11 +34,13 @@ pub struct TypeTesting {
     #[serde_as(as = "serde_with::base64::Base64")]
     #[serde(rename = "bytes")]
     pub bytes: Vec<u8>,
+    #[serde(rename = "decimal")]
+    pub decimal: String,
 }
 
 impl TypeTesting {
     /// Test handling of different field data types
-    pub fn new(int32: i32, int64: i64, float: f32, double: f64, string: String, boolean: bool, uuid: uuid::Uuid, bytes: Vec<u8>) -> TypeTesting {
+    pub fn new(int32: i32, int64: i64, float: f32, double: f64, string: String, boolean: bool, uuid: uuid::Uuid, bytes: Vec<u8>, decimal: String) -> TypeTesting {
         TypeTesting {
             int32,
             int64,
@@ -48,6 +50,7 @@ impl TypeTesting {
             boolean,
             uuid,
             bytes,
+            decimal,
         }
     }
 }
diff --git a/samples/client/petstore/rust/hyper0x/petstore/docs/TypeTesting.md b/samples/client/petstore/rust/hyper0x/petstore/docs/TypeTesting.md
index 4f650eb1aa2..393d1b9bd27 100644
--- a/samples/client/petstore/rust/hyper0x/petstore/docs/TypeTesting.md
+++ b/samples/client/petstore/rust/hyper0x/petstore/docs/TypeTesting.md
@@ -12,6 +12,7 @@ Name | Type | Description | Notes
 **boolean** | **bool** |  | 
 **uuid** | [**uuid::Uuid**](uuid::Uuid.md) |  | 
 **bytes** | **String** |  | 
+**decimal** | **String** |  | 
 
 [[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
 
diff --git a/samples/client/petstore/rust/hyper0x/petstore/src/models/type_testing.rs b/samples/client/petstore/rust/hyper0x/petstore/src/models/type_testing.rs
index dba87bdb3cf..9e797e82298 100644
--- a/samples/client/petstore/rust/hyper0x/petstore/src/models/type_testing.rs
+++ b/samples/client/petstore/rust/hyper0x/petstore/src/models/type_testing.rs
@@ -34,11 +34,13 @@ pub struct TypeTesting {
     #[serde_as(as = "serde_with::base64::Base64")]
     #[serde(rename = "bytes")]
     pub bytes: Vec<u8>,
+    #[serde(rename = "decimal")]
+    pub decimal: String,
 }
 
 impl TypeTesting {
     /// Test handling of different field data types
-    pub fn new(int32: i32, int64: i64, float: f32, double: f64, string: String, boolean: bool, uuid: uuid::Uuid, bytes: Vec<u8>) -> TypeTesting {
+    pub fn new(int32: i32, int64: i64, float: f32, double: f64, string: String, boolean: bool, uuid: uuid::Uuid, bytes: Vec<u8>, decimal: String) -> TypeTesting {
         TypeTesting {
             int32,
             int64,
@@ -48,6 +50,7 @@ impl TypeTesting {
             boolean,
             uuid,
             bytes,
+            decimal,
         }
     }
 }
diff --git a/samples/client/petstore/rust/reqwest-trait/petstore/docs/TypeTesting.md b/samples/client/petstore/rust/reqwest-trait/petstore/docs/TypeTesting.md
index 4f650eb1aa2..393d1b9bd27 100644
--- a/samples/client/petstore/rust/reqwest-trait/petstore/docs/TypeTesting.md
+++ b/samples/client/petstore/rust/reqwest-trait/petstore/docs/TypeTesting.md
@@ -12,6 +12,7 @@ Name | Type | Description | Notes
 **boolean** | **bool** |  | 
 **uuid** | [**uuid::Uuid**](uuid::Uuid.md) |  | 
 **bytes** | **String** |  | 
+**decimal** | **String** |  | 
 
 [[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
 
diff --git a/samples/client/petstore/rust/reqwest-trait/petstore/src/models/type_testing.rs b/samples/client/petstore/rust/reqwest-trait/petstore/src/models/type_testing.rs
index dba87bdb3cf..9e797e82298 100644
--- a/samples/client/petstore/rust/reqwest-trait/petstore/src/models/type_testing.rs
+++ b/samples/client/petstore/rust/reqwest-trait/petstore/src/models/type_testing.rs
@@ -34,11 +34,13 @@ pub struct TypeTesting {
     #[serde_as(as = "serde_with::base64::Base64")]
     #[serde(rename = "bytes")]
     pub bytes: Vec<u8>,
+    #[serde(rename = "decimal")]
+    pub decimal: String,
 }
 
 impl TypeTesting {
     /// Test handling of different field data types
-    pub fn new(int32: i32, int64: i64, float: f32, double: f64, string: String, boolean: bool, uuid: uuid::Uuid, bytes: Vec<u8>) -> TypeTesting {
+    pub fn new(int32: i32, int64: i64, float: f32, double: f64, string: String, boolean: bool, uuid: uuid::Uuid, bytes: Vec<u8>, decimal: String) -> TypeTesting {
         TypeTesting {
             int32,
             int64,
@@ -48,6 +50,7 @@ impl TypeTesting {
             boolean,
             uuid,
             bytes,
+            decimal,
         }
     }
 }
diff --git a/samples/client/petstore/rust/reqwest/petstore-async-middleware/docs/TypeTesting.md b/samples/client/petstore/rust/reqwest/petstore-async-middleware/docs/TypeTesting.md
index 4f650eb1aa2..393d1b9bd27 100644
--- a/samples/client/petstore/rust/reqwest/petstore-async-middleware/docs/TypeTesting.md
+++ b/samples/client/petstore/rust/reqwest/petstore-async-middleware/docs/TypeTesting.md
@@ -12,6 +12,7 @@ Name | Type | Description | Notes
 **boolean** | **bool** |  | 
 **uuid** | [**uuid::Uuid**](uuid::Uuid.md) |  | 
 **bytes** | **String** |  | 
+**decimal** | **String** |  | 
 
 [[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
 
diff --git a/samples/client/petstore/rust/reqwest/petstore-async-middleware/src/models/type_testing.rs b/samples/client/petstore/rust/reqwest/petstore-async-middleware/src/models/type_testing.rs
index dba87bdb3cf..9e797e82298 100644
--- a/samples/client/petstore/rust/reqwest/petstore-async-middleware/src/models/type_testing.rs
+++ b/samples/client/petstore/rust/reqwest/petstore-async-middleware/src/models/type_testing.rs
@@ -34,11 +34,13 @@ pub struct TypeTesting {
     #[serde_as(as = "serde_with::base64::Base64")]
     #[serde(rename = "bytes")]
     pub bytes: Vec<u8>,
+    #[serde(rename = "decimal")]
+    pub decimal: String,
 }
 
 impl TypeTesting {
     /// Test handling of different field data types
-    pub fn new(int32: i32, int64: i64, float: f32, double: f64, string: String, boolean: bool, uuid: uuid::Uuid, bytes: Vec<u8>) -> TypeTesting {
+    pub fn new(int32: i32, int64: i64, float: f32, double: f64, string: String, boolean: bool, uuid: uuid::Uuid, bytes: Vec<u8>, decimal: String) -> TypeTesting {
         TypeTesting {
             int32,
             int64,
@@ -48,6 +50,7 @@ impl TypeTesting {
             boolean,
             uuid,
             bytes,
+            decimal,
         }
     }
 }
diff --git a/samples/client/petstore/rust/reqwest/petstore-async-tokensource/docs/TypeTesting.md b/samples/client/petstore/rust/reqwest/petstore-async-tokensource/docs/TypeTesting.md
index 4f650eb1aa2..393d1b9bd27 100644
--- a/samples/client/petstore/rust/reqwest/petstore-async-tokensource/docs/TypeTesting.md
+++ b/samples/client/petstore/rust/reqwest/petstore-async-tokensource/docs/TypeTesting.md
@@ -12,6 +12,7 @@ Name | Type | Description | Notes
 **boolean** | **bool** |  | 
 **uuid** | [**uuid::Uuid**](uuid::Uuid.md) |  | 
 **bytes** | **String** |  | 
+**decimal** | **String** |  | 
 
 [[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
 
diff --git a/samples/client/petstore/rust/reqwest/petstore-async-tokensource/src/models/type_testing.rs b/samples/client/petstore/rust/reqwest/petstore-async-tokensource/src/models/type_testing.rs
index dba87bdb3cf..9e797e82298 100644
--- a/samples/client/petstore/rust/reqwest/petstore-async-tokensource/src/models/type_testing.rs
+++ b/samples/client/petstore/rust/reqwest/petstore-async-tokensource/src/models/type_testing.rs
@@ -34,11 +34,13 @@ pub struct TypeTesting {
     #[serde_as(as = "serde_with::base64::Base64")]
     #[serde(rename = "bytes")]
     pub bytes: Vec<u8>,
+    #[serde(rename = "decimal")]
+    pub decimal: String,
 }
 
 impl TypeTesting {
     /// Test handling of different field data types
-    pub fn new(int32: i32, int64: i64, float: f32, double: f64, string: String, boolean: bool, uuid: uuid::Uuid, bytes: Vec<u8>) -> TypeTesting {
+    pub fn new(int32: i32, int64: i64, float: f32, double: f64, string: String, boolean: bool, uuid: uuid::Uuid, bytes: Vec<u8>, decimal: String) -> TypeTesting {
         TypeTesting {
             int32,
             int64,
@@ -48,6 +50,7 @@ impl TypeTesting {
             boolean,
             uuid,
             bytes,
+            decimal,
         }
     }
 }
diff --git a/samples/client/petstore/rust/reqwest/petstore-async/docs/TypeTesting.md b/samples/client/petstore/rust/reqwest/petstore-async/docs/TypeTesting.md
index 4f650eb1aa2..393d1b9bd27 100644
--- a/samples/client/petstore/rust/reqwest/petstore-async/docs/TypeTesting.md
+++ b/samples/client/petstore/rust/reqwest/petstore-async/docs/TypeTesting.md
@@ -12,6 +12,7 @@ Name | Type | Description | Notes
 **boolean** | **bool** |  | 
 **uuid** | [**uuid::Uuid**](uuid::Uuid.md) |  | 
 **bytes** | **String** |  | 
+**decimal** | **String** |  | 
 
 [[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
 
diff --git a/samples/client/petstore/rust/reqwest/petstore-async/src/models/type_testing.rs b/samples/client/petstore/rust/reqwest/petstore-async/src/models/type_testing.rs
index dba87bdb3cf..9e797e82298 100644
--- a/samples/client/petstore/rust/reqwest/petstore-async/src/models/type_testing.rs
+++ b/samples/client/petstore/rust/reqwest/petstore-async/src/models/type_testing.rs
@@ -34,11 +34,13 @@ pub struct TypeTesting {
     #[serde_as(as = "serde_with::base64::Base64")]
     #[serde(rename = "bytes")]
     pub bytes: Vec<u8>,
+    #[serde(rename = "decimal")]
+    pub decimal: String,
 }
 
 impl TypeTesting {
     /// Test handling of different field data types
-    pub fn new(int32: i32, int64: i64, float: f32, double: f64, string: String, boolean: bool, uuid: uuid::Uuid, bytes: Vec<u8>) -> TypeTesting {
+    pub fn new(int32: i32, int64: i64, float: f32, double: f64, string: String, boolean: bool, uuid: uuid::Uuid, bytes: Vec<u8>, decimal: String) -> TypeTesting {
         TypeTesting {
             int32,
             int64,
@@ -48,6 +50,7 @@ impl TypeTesting {
             boolean,
             uuid,
             bytes,
+            decimal,
         }
     }
 }
diff --git a/samples/client/petstore/rust/reqwest/petstore-avoid-box/docs/TypeTesting.md b/samples/client/petstore/rust/reqwest/petstore-avoid-box/docs/TypeTesting.md
index 4f650eb1aa2..393d1b9bd27 100644
--- a/samples/client/petstore/rust/reqwest/petstore-avoid-box/docs/TypeTesting.md
+++ b/samples/client/petstore/rust/reqwest/petstore-avoid-box/docs/TypeTesting.md
@@ -12,6 +12,7 @@ Name | Type | Description | Notes
 **boolean** | **bool** |  | 
 **uuid** | [**uuid::Uuid**](uuid::Uuid.md) |  | 
 **bytes** | **String** |  | 
+**decimal** | **String** |  | 
 
 [[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
 
diff --git a/samples/client/petstore/rust/reqwest/petstore-avoid-box/src/models/type_testing.rs b/samples/client/petstore/rust/reqwest/petstore-avoid-box/src/models/type_testing.rs
index dba87bdb3cf..9e797e82298 100644
--- a/samples/client/petstore/rust/reqwest/petstore-avoid-box/src/models/type_testing.rs
+++ b/samples/client/petstore/rust/reqwest/petstore-avoid-box/src/models/type_testing.rs
@@ -34,11 +34,13 @@ pub struct TypeTesting {
     #[serde_as(as = "serde_with::base64::Base64")]
     #[serde(rename = "bytes")]
     pub bytes: Vec<u8>,
+    #[serde(rename = "decimal")]
+    pub decimal: String,
 }
 
 impl TypeTesting {
     /// Test handling of different field data types
-    pub fn new(int32: i32, int64: i64, float: f32, double: f64, string: String, boolean: bool, uuid: uuid::Uuid, bytes: Vec<u8>) -> TypeTesting {
+    pub fn new(int32: i32, int64: i64, float: f32, double: f64, string: String, boolean: bool, uuid: uuid::Uuid, bytes: Vec<u8>, decimal: String) -> TypeTesting {
         TypeTesting {
             int32,
             int64,
@@ -48,6 +50,7 @@ impl TypeTesting {
             boolean,
             uuid,
             bytes,
+            decimal,
         }
     }
 }
diff --git a/samples/client/petstore/rust/reqwest/petstore-awsv4signature/docs/TypeTesting.md b/samples/client/petstore/rust/reqwest/petstore-awsv4signature/docs/TypeTesting.md
index 4f650eb1aa2..393d1b9bd27 100644
--- a/samples/client/petstore/rust/reqwest/petstore-awsv4signature/docs/TypeTesting.md
+++ b/samples/client/petstore/rust/reqwest/petstore-awsv4signature/docs/TypeTesting.md
@@ -12,6 +12,7 @@ Name | Type | Description | Notes
 **boolean** | **bool** |  | 
 **uuid** | [**uuid::Uuid**](uuid::Uuid.md) |  | 
 **bytes** | **String** |  | 
+**decimal** | **String** |  | 
 
 [[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
 
diff --git a/samples/client/petstore/rust/reqwest/petstore-awsv4signature/src/models/type_testing.rs b/samples/client/petstore/rust/reqwest/petstore-awsv4signature/src/models/type_testing.rs
index dba87bdb3cf..9e797e82298 100644
--- a/samples/client/petstore/rust/reqwest/petstore-awsv4signature/src/models/type_testing.rs
+++ b/samples/client/petstore/rust/reqwest/petstore-awsv4signature/src/models/type_testing.rs
@@ -34,11 +34,13 @@ pub struct TypeTesting {
     #[serde_as(as = "serde_with::base64::Base64")]
     #[serde(rename = "bytes")]
     pub bytes: Vec<u8>,
+    #[serde(rename = "decimal")]
+    pub decimal: String,
 }
 
 impl TypeTesting {
     /// Test handling of different field data types
-    pub fn new(int32: i32, int64: i64, float: f32, double: f64, string: String, boolean: bool, uuid: uuid::Uuid, bytes: Vec<u8>) -> TypeTesting {
+    pub fn new(int32: i32, int64: i64, float: f32, double: f64, string: String, boolean: bool, uuid: uuid::Uuid, bytes: Vec<u8>, decimal: String) -> TypeTesting {
         TypeTesting {
             int32,
             int64,
@@ -48,6 +50,7 @@ impl TypeTesting {
             boolean,
             uuid,
             bytes,
+            decimal,
         }
     }
 }
diff --git a/samples/client/petstore/rust/reqwest/petstore-model-name-prefix/docs/FooTypeTesting.md b/samples/client/petstore/rust/reqwest/petstore-model-name-prefix/docs/FooTypeTesting.md
index 9d847fc1cbf..cc73c990687 100644
--- a/samples/client/petstore/rust/reqwest/petstore-model-name-prefix/docs/FooTypeTesting.md
+++ b/samples/client/petstore/rust/reqwest/petstore-model-name-prefix/docs/FooTypeTesting.md
@@ -12,6 +12,7 @@ Name | Type | Description | Notes
 **boolean** | **bool** |  | 
 **uuid** | [**uuid::Uuid**](uuid::Uuid.md) |  | 
 **bytes** | **String** |  | 
+**decimal** | **String** |  | 
 
 [[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
 
diff --git a/samples/client/petstore/rust/reqwest/petstore-model-name-prefix/src/models/foo_type_testing.rs b/samples/client/petstore/rust/reqwest/petstore-model-name-prefix/src/models/foo_type_testing.rs
index 62147ee60b7..4fe82f1015f 100644
--- a/samples/client/petstore/rust/reqwest/petstore-model-name-prefix/src/models/foo_type_testing.rs
+++ b/samples/client/petstore/rust/reqwest/petstore-model-name-prefix/src/models/foo_type_testing.rs
@@ -34,11 +34,13 @@ pub struct FooTypeTesting {
     #[serde_as(as = "serde_with::base64::Base64")]
     #[serde(rename = "bytes")]
     pub bytes: Vec<u8>,
+    #[serde(rename = "decimal")]
+    pub decimal: String,
 }
 
 impl FooTypeTesting {
     /// Test handling of different field data types
-    pub fn new(int32: i32, int64: i64, float: f32, double: f64, string: String, boolean: bool, uuid: uuid::Uuid, bytes: Vec<u8>) -> FooTypeTesting {
+    pub fn new(int32: i32, int64: i64, float: f32, double: f64, string: String, boolean: bool, uuid: uuid::Uuid, bytes: Vec<u8>, decimal: String) -> FooTypeTesting {
         FooTypeTesting {
             int32,
             int64,
@@ -48,6 +50,7 @@ impl FooTypeTesting {
             boolean,
             uuid,
             bytes,
+            decimal,
         }
     }
 }
diff --git a/samples/client/petstore/rust/reqwest/petstore/docs/TypeTesting.md b/samples/client/petstore/rust/reqwest/petstore/docs/TypeTesting.md
index 4f650eb1aa2..393d1b9bd27 100644
--- a/samples/client/petstore/rust/reqwest/petstore/docs/TypeTesting.md
+++ b/samples/client/petstore/rust/reqwest/petstore/docs/TypeTesting.md
@@ -12,6 +12,7 @@ Name | Type | Description | Notes
 **boolean** | **bool** |  | 
 **uuid** | [**uuid::Uuid**](uuid::Uuid.md) |  | 
 **bytes** | **String** |  | 
+**decimal** | **String** |  | 
 
 [[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
 
diff --git a/samples/client/petstore/rust/reqwest/petstore/src/models/type_testing.rs b/samples/client/petstore/rust/reqwest/petstore/src/models/type_testing.rs
index dba87bdb3cf..9e797e82298 100644
--- a/samples/client/petstore/rust/reqwest/petstore/src/models/type_testing.rs
+++ b/samples/client/petstore/rust/reqwest/petstore/src/models/type_testing.rs
@@ -34,11 +34,13 @@ pub struct TypeTesting {
     #[serde_as(as = "serde_with::base64::Base64")]
     #[serde(rename = "bytes")]
     pub bytes: Vec<u8>,
+    #[serde(rename = "decimal")]
+    pub decimal: String,
 }
 
 impl TypeTesting {
     /// Test handling of different field data types
-    pub fn new(int32: i32, int64: i64, float: f32, double: f64, string: String, boolean: bool, uuid: uuid::Uuid, bytes: Vec<u8>) -> TypeTesting {
+    pub fn new(int32: i32, int64: i64, float: f32, double: f64, string: String, boolean: bool, uuid: uuid::Uuid, bytes: Vec<u8>, decimal: String) -> TypeTesting {
         TypeTesting {
             int32,
             int64,
@@ -48,6 +50,7 @@ impl TypeTesting {
             boolean,
             uuid,
             bytes,
+            decimal,
         }
     }
 }
diff --git a/samples/client/petstore/rust/reqwest/petstore/tests/type_testing.rs b/samples/client/petstore/rust/reqwest/petstore/tests/type_testing.rs
index a6a710abf52..0ee189f7f5f 100644
--- a/samples/client/petstore/rust/reqwest/petstore/tests/type_testing.rs
+++ b/samples/client/petstore/rust/reqwest/petstore/tests/type_testing.rs
@@ -13,7 +13,8 @@ fn test_types() {
         string: String::from("something"),
         boolean: true,
         uuid: Uuid::new_v4(),
-        bytes: vec![1,2,3,4]
+        bytes: vec![1, 2, 3, 4],
+        decimal: String::from("foo"),
     };
     assert_eq!(type_of(tt.int32), "i32");
     assert_eq!(type_of(tt.int64), "i64");
@@ -22,6 +23,7 @@ fn test_types() {
     assert_eq!(type_of(tt.string), "alloc::string::String");
     assert_eq!(type_of(tt.boolean), "bool");
     assert_eq!(type_of(tt.uuid), "uuid::Uuid");
+    assert_eq!(type_of(tt.decimal), "alloc::string::String");
 }
 
 fn type_of<T>(_: T) -> &'static str {