diff --git a/paddle/operators/reduce_op.cc b/paddle/operators/reduce_op.cc
index 172d28bb3b647901d4de7bc03c9de21e3468a364..09b7091358e65221374a604122b742d763cfbafc 100644
--- a/paddle/operators/reduce_op.cc
+++ b/paddle/operators/reduce_op.cc
@@ -129,7 +129,7 @@ If reduce_all is true, just reduce along all dimensions and output a scalar.
   }
 
   void SetComment(std::string name, std::string op) {
-    Replace(comment_, "{ReduceOP}", name);
+    Replace(comment_, "{ReduceOp}", name);
     Replace(comment_, "{reduce}", op);
   }
 };