diff --git a/easy_rec/python/inference/vector_retrieve.py b/easy_rec/python/inference/vector_retrieve.py
index 3800b88e9..a8a8122d5 100644
--- a/easy_rec/python/inference/vector_retrieve.py
+++ b/easy_rec/python/inference/vector_retrieve.py
@@ -14,7 +14,7 @@
 try:
   import graphlearn as gl
 except:  # noqa: E722
-  logging.WARN(
+  logging.warning(
       'GraphLearn is not installed. You can install it by "pip install https://easyrec.oss-cn-beijing.aliyuncs.com/3rdparty/graphlearn-0.7-cp27-cp27mu-linux_x86_64.whl.'  # noqa: E501
   )