diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/CSharpNetCoreClientCodegen.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/CSharpNetCoreClientCodegen.java
index 0dd14c352d0d..3c8d8a3e33d0 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/CSharpNetCoreClientCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/CSharpNetCoreClientCodegen.java
@@ -138,6 +138,7 @@ public CSharpNetCoreClientCodegen() {
         typeMapping.put("object", "Object");
         typeMapping.put("UUID", "Guid");
         typeMapping.put("URI", "string");
+        typeMapping.put("AnyType", "Object");
 
         setSupportNullable(Boolean.TRUE);
         hideGenerationTimestamp = Boolean.TRUE;