diff --git a/paddle/optimizer/sgd_optimizer.h b/paddle/optimizer/sgd_optimizer.h
index 1bb97349c7cdcf7a7604d9f10a9aa3eb91f47971..10b46db38686a25b5e5742ddd0b1642510d89b29 100644
--- a/paddle/optimizer/sgd_optimizer.h
+++ b/paddle/optimizer/sgd_optimizer.h
@@ -1,5 +1,4 @@
-#ifndef PADDLE_SGD_OPTIMIZER_H_
-#define PADDLE_SGD_OPTIMIZER_H_
+#pragma once
 
 #include "parameter_optimizer.h"
 
@@ -31,5 +30,3 @@ private:
 
 }  // namespace optimizer
 }  // namespace paddle
-
-#endif