diff --git a/python/paddle_serving_server_gpu/__init__.py b/python/paddle_serving_server_gpu/__init__.py
index f4e27fce8bd42677a6755c4415a0ed270b0084df..106af5272da4903a73c0e0619cf350288b309339 100644
--- a/python/paddle_serving_server_gpu/__init__.py
+++ b/python/paddle_serving_server_gpu/__init__.py
@@ -571,7 +571,7 @@ class MultiLangServerServiceServicer(multi_lang_general_model_service_pb2_grpc.
         return feed_batch, fetch_names, is_python
 
     def _pack_inference_response(self, ret, fetch_names, is_python):
-        resp = multi_lang_general_model_service_pb2.Response()
+        resp = multi_lang_general_model_service_pb2.InferenceResponse()
         if ret is None:
             resp.err_code = 1
             return resp