diff --git a/paddle/framework/backward_test.cc b/paddle/framework/backward_test.cc
index b4e51ad6ed98b327db302583570a6abf12967b64..6932f5b989a3e21ebc44ec4fec9f5223f2547d7a 100644
--- a/paddle/framework/backward_test.cc
+++ b/paddle/framework/backward_test.cc
@@ -127,8 +127,8 @@ class FillZeroOpMaker : public OpProtoAndCheckerMaker {
  public:
   FillZeroOpMaker(OpProto *proto, OpAttrChecker *op_checker)
       : OpProtoAndCheckerMaker(proto, op_checker) {
-    AddInput("Src", "x");
-    AddOutput("Dst", "out");
+    AddInput("X", "x");
+    AddOutput("Y", "out");
     AddComment("");
   }
 };