diff --git a/python/paddle/fluid/tests/unittests/test_dist_simnet_bow.py b/python/paddle/fluid/tests/unittests/test_dist_simnet_bow.py
index e1cebc8c97ae9bbc09052e8b544e0b5d231fdd83..102a4dab05fe1adc6a503920714f50415b29dc19 100644
--- a/python/paddle/fluid/tests/unittests/test_dist_simnet_bow.py
+++ b/python/paddle/fluid/tests/unittests/test_dist_simnet_bow.py
@@ -145,5 +145,6 @@ class TestDistSimnetBow2x2LookupTableNotContainLRSync(TestDistBase):
             check_error_log=False,
             need_envs=need_envs)
 
+
 if __name__ == "__main__":
     unittest.main()