diff --git a/python/paddle/fluid/incubate/fleet/parameter_server/__init__.py b/python/paddle/fluid/incubate/fleet/parameter_server/__init__.py
index e976adffa0882d88181d9140c454d9f5bff19865..926dd3649b2e51e19730f3af084e8288b279569a 100644
--- a/python/paddle/fluid/incubate/fleet/parameter_server/__init__.py
+++ b/python/paddle/fluid/incubate/fleet/parameter_server/__init__.py
@@ -250,7 +250,8 @@ class Fleet(object):
         Args:
             filelist(list): list of filename, can be local or hdfs/afs.
 
-        Returns: list of filename which belongs to this trainer.
+        Returns:
+            list of filename which belongs to this trainer.
         """
         file_num = len(filelist)
         trainer_id = self.get_worker_index()