diff --git a/easy_rec/python/compat/early_stopping.py b/easy_rec/python/compat/early_stopping.py
index fe4c12132..fc850fb62 100644
--- a/easy_rec/python/compat/early_stopping.py
+++ b/easy_rec/python/compat/early_stopping.py
@@ -21,9 +21,9 @@
 import os
 import threading
 import time
-from distutils.version import LooseVersion
 
 import tensorflow as tf
+from distutils.version import LooseVersion
 from tensorflow.python.framework import dtypes
 from tensorflow.python.framework import ops
 from tensorflow.python.ops import init_ops