diff --git a/python/paddle_serving_server/__init__.py b/python/paddle_serving_server/__init__.py
index e0164b496a458721e0e484b5c6bfa8d139eb5fdb..c399a80d59c58292f8914c32a3faadb76139477f 100644
--- a/python/paddle_serving_server/__init__.py
+++ b/python/paddle_serving_server/__init__.py
@@ -239,7 +239,7 @@ class Server(object):
             # it from workflow_conf.
             default_engine_names = [
                 'general_infer_0', 'general_dist_kv_infer_0',
-                'general_dist_kv_quant_infer'
+                'general_dist_kv_quant_infer_0'
             ]
             engine_name = None
             for node in self.workflow_conf.workflows[0].nodes:
diff --git a/python/paddle_serving_server_gpu/__init__.py b/python/paddle_serving_server_gpu/__init__.py
index 981494e1a6281780cce633d755034e602dac39c1..db5415127a0d1ef9bcccbd2d0639c3e07083d375 100644
--- a/python/paddle_serving_server_gpu/__init__.py
+++ b/python/paddle_serving_server_gpu/__init__.py
@@ -274,7 +274,7 @@ class Server(object):
             # it from workflow_conf.
             default_engine_names = [
                 'general_infer_0', 'general_dist_kv_infer_0',
-                'general_dist_kv_quant_infer'
+                'general_dist_kv_quant_infer_0'
             ]
             engine_name = None
             for node in self.workflow_conf.nodes: