diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/DartDioClientCodegen.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/DartDioClientCodegen.java
index 5e7b0b77f3aa..9c06fb029b7a 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/DartDioClientCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/DartDioClientCodegen.java
@@ -89,6 +89,7 @@ public DartDioClientCodegen() {
 
         typeMapping.put("file", "Uint8List");
         typeMapping.put("binary", "Uint8List");
+        typeMapping.put("AnyType", "Object");
 
         importMapping.put("BuiltList", "package:built_collection/built_collection.dart");
         importMapping.put("BuiltMap", "package:built_collection/built_collection.dart");