diff --git a/python/paddle_serving_server/web_service.py b/python/paddle_serving_server/web_service.py
index 539c613d40af7c1f6824fc03ce3733c942816318..1f035db9262ffbd8e031c9b0018877eb2ba6fad2 100644
--- a/python/paddle_serving_server/web_service.py
+++ b/python/paddle_serving_server/web_service.py
@@ -58,7 +58,7 @@ class WebService(object):
         if os.path.isdir(model_config):
             client_config = "{}/serving_server_conf.prototxt".format(
                 model_config)
-        elif os.path.isfile(path):
+        elif os.path.isfile(model_config):
             client_config = model_config
         model_conf = m_config.GeneralModelConfig()
         f = open(client_config, 'r')
diff --git a/python/paddle_serving_server_gpu/web_service.py b/python/paddle_serving_server_gpu/web_service.py
index c086e393e537a0024d0e605c281fb9344a6ee754..8389f92cbfda7a209ff0fe4a77497ba2db1dbe1f 100644
--- a/python/paddle_serving_server_gpu/web_service.py
+++ b/python/paddle_serving_server_gpu/web_service.py
@@ -64,7 +64,7 @@ class WebService(object):
         if os.path.isdir(model_config):
             client_config = "{}/serving_server_conf.prototxt".format(
                 model_config)
-        elif os.path.isfile(path):
+        elif os.path.isfile(model_config):
             client_config = model_config
         model_conf = m_config.GeneralModelConfig()
         f = open(client_config, 'r')