diff --git a/paddle/strings/stringpiece.h b/paddle/strings/stringpiece.h
index b452116057cb1d6ad53d5bb42d65221526d6a4fe..adff713e86f49349b8f189c1d24584bfc1bb8aa7 100644
--- a/paddle/strings/stringpiece.h
+++ b/paddle/strings/stringpiece.h
@@ -16,8 +16,8 @@
 
 #pragma once
 
-#include <string>
 #include <ostream>
+#include <string>
 
 namespace paddle {