diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractCSharpCodegen.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractCSharpCodegen.java
index a59c2175f35..d925cf16833 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractCSharpCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractCSharpCodegen.java
@@ -195,6 +195,7 @@ public abstract class AbstractCSharpCodegen extends DefaultCodegen implements Co
         typeMapping.put("object", "Object");
         typeMapping.put("UUID", "Guid?");
         typeMapping.put("URI", "string");
+        typeMapping.put("AnyType", "Object");
 
         // nullable type
         nullableType = new HashSet<String>(