diff --git a/paddle/framework/scope.cc b/paddle/framework/scope.cc
index 5c197cec2a0054722e1c84f8a6920cb5d4f32725..72cb744707dd6f8ccf8fa02a818af4927d662f24 100644
--- a/paddle/framework/scope.cc
+++ b/paddle/framework/scope.cc
@@ -42,7 +42,7 @@ Variable* Scope::GetVariable(const std::string& name) const {
   }
 }
 
-bool Scope::HasVariable(const std::string &name) {
+bool Scope::HasVariable(const std::string& name) {
   return (vars_.count(name) > 0 || (parent_ && parent_->HasVariable(name)));
 }
 
diff --git a/paddle/framework/scope.h b/paddle/framework/scope.h
index 81491f34d8cb22b408c572fc0dba60ad90c008d3..a624fe3bbef3ae3c7671e6f549c2cb7c63def15f 100644
--- a/paddle/framework/scope.h
+++ b/paddle/framework/scope.h
@@ -14,9 +14,9 @@ limitations under the License. */
 
 #pragma once
 
+#include <string>
 #include <unordered_map>
 #include <vector>
-#include <string>
 
 #include "paddle/framework/variable.h"
 
@@ -49,7 +49,7 @@ class Scope {
   Variable* GetVarLocally(const std::string& name) const;
 
   // Find if there is a Variable in this scope and it's parent scope
-  bool HasVariable(const std::string &name);
+  bool HasVariable(const std::string& name);
 
  private:
   std::unordered_map<std::string, std::unique_ptr<Variable>> vars_;