diff --git a/bin/configs/dart-petstore-client-lib.yaml b/bin/configs/dart-petstore-client-lib.yaml
index 8b4a6deefd7..5ea43560581 100644
--- a/bin/configs/dart-petstore-client-lib.yaml
+++ b/bin/configs/dart-petstore-client-lib.yaml
@@ -4,3 +4,5 @@ inputSpec: modules/openapi-generator/src/test/resources/3_0/petstore.yaml
 templateDir: modules/openapi-generator/src/main/resources/dart2
 additionalProperties:
   hideGenerationTimestamp: "true"
+enumNameMappings:
+  delivered: shipped
diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractDartCodegen.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractDartCodegen.java
index 1e1dc710026..62c55f904d8 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractDartCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractDartCodegen.java
@@ -712,6 +712,10 @@ public abstract class AbstractDartCodegen extends DefaultCodegen {
 
     @Override
     public String toEnumVarName(String value, String datatype) {
+        if (enumNameMapping.containsKey(value)) {
+            return enumNameMapping.get(value);
+        }
+
         if (value.length() == 0) {
             return "empty";
         }
diff --git a/samples/openapi3/client/petstore/dart2/petstore_client_lib/lib/model/order.dart b/samples/openapi3/client/petstore/dart2/petstore_client_lib/lib/model/order.dart
index 4871871516f..75f8dbee224 100644
--- a/samples/openapi3/client/petstore/dart2/petstore_client_lib/lib/model/order.dart
+++ b/samples/openapi3/client/petstore/dart2/petstore_client_lib/lib/model/order.dart
@@ -201,13 +201,13 @@ class OrderStatusEnum {
 
   static const placed = OrderStatusEnum._(r'placed');
   static const approved = OrderStatusEnum._(r'approved');
-  static const delivered = OrderStatusEnum._(r'delivered');
+  static const shipped = OrderStatusEnum._(r'delivered');
 
   /// List of all possible values in this [enum][OrderStatusEnum].
   static const values = <OrderStatusEnum>[
     placed,
     approved,
-    delivered,
+    shipped,
   ];
 
   static OrderStatusEnum? fromJson(dynamic value) => OrderStatusEnumTypeTransformer().decode(value);
@@ -248,7 +248,7 @@ class OrderStatusEnumTypeTransformer {
       switch (data) {
         case r'placed': return OrderStatusEnum.placed;
         case r'approved': return OrderStatusEnum.approved;
-        case r'delivered': return OrderStatusEnum.delivered;
+        case r'delivered': return OrderStatusEnum.shipped;
         default:
           if (!allowNull) {
             throw ArgumentError('Unknown enum value to decode: $data');