diff --git a/packages/dynamite/dynamite/lib/src/openapi_builder.dart b/packages/dynamite/dynamite/lib/src/openapi_builder.dart
index 764d2a71..a9ad780f 100644
--- a/packages/dynamite/dynamite/lib/src/openapi_builder.dart
+++ b/packages/dynamite/dynamite/lib/src/openapi_builder.dart
@@ -598,7 +598,7 @@ class OpenAPIBuilder implements Builder {
                                     isHeader: true,
                                   );
                                   headersType = result.name;
-                                  headersValue = result.deserialize('response.headers');
+                                  headersValue = result.deserialize('response.responseHeaders');
                                 }
 
                                 String? dataType;