diff --git a/paddle/operators/elementwise_mul_op.h b/paddle/operators/elementwise_mul_op.h
index e9ed6791799240039f9af42c1a4339be7126ee65..6d58da580b81b9e0a8ae170eec1a73638b190df8 100644
--- a/paddle/operators/elementwise_mul_op.h
+++ b/paddle/operators/elementwise_mul_op.h
@@ -13,10 +13,8 @@
    limitations under the License. */
 
 #pragma once
-#include <iostream>
 #include "paddle/framework/eigen.h"
 #include "paddle/framework/op_registry.h"
-#include "paddle/operators/math/math_function.h"
 
 namespace paddle {
 namespace operators {
diff --git a/paddle/operators/minus_op.cc b/paddle/operators/minus_op.cc
index 8a583f24edf40ce805ca216ab014bd169f9236df..1eac8f133bdd5c73a40c8a97b0f56a706d771f22 100644
--- a/paddle/operators/minus_op.cc
+++ b/paddle/operators/minus_op.cc
@@ -77,8 +77,6 @@ class MinusGradOp : public NetOp {
 }  // namespace operators
 }  // namespace paddle
 
-USE_OP(scale);
-USE_NO_KERNEL_OP(identity);
 namespace ops = paddle::operators;
 REGISTER_OP(minus, ops::MinusOp, ops::MinusOpMaker, minus_grad,
             ops::MinusGradOp<float>);