diff --git a/python/paddle/v2/framework/layer_helper.py b/python/paddle/v2/framework/layer_helper.py
index 9092c33f36dce6d0ed52838512dd0c09d9393f5b..b4373493dc090350bab26b9ede93a76089285b2d 100644
--- a/python/paddle/v2/framework/layer_helper.py
+++ b/python/paddle/v2/framework/layer_helper.py
@@ -144,7 +144,7 @@ class LayerHelper(object):
                     'Y': [b]},
             outputs={'Out': [tmp]},
             # for rowwise add, we should set axis 1
-            attr={'axis': 1})
+            attrs={'axis': 1})
         return tmp
 
     def append_activation(self, input_var):