diff --git a/deploy/paddleserving/classification_web_service.py b/deploy/paddleserving/classification_web_service.py
index 307e48c09c20578f7443ab6a99ee38860459162c..75eb335a80f726e9e15fe116f2e2271c2ae445d3 100644
--- a/deploy/paddleserving/classification_web_service.py
+++ b/deploy/paddleserving/classification_web_service.py
@@ -49,7 +49,7 @@ class ImagenetOp(Op):
         input_imgs = np.concatenate(imgs, axis=0)
         return {"inputs": input_imgs}, False, None, ""
 
-    def postprocess(self, input_dicts, fetch_dict, log_id):
+    def postprocess(self, input_dicts, fetch_dict, data_id, log_id):
         score_list = fetch_dict["prediction"]
         result = {"label": [], "prob": []}
         for score in score_list: