diff --git a/response_writer_1.7.go b/response_writer_1.7.go
index 0ffa35b8..fd0c2b7e 100644
--- a/response_writer_1.7.go
+++ b/response_writer_1.7.go
@@ -1,4 +1,4 @@
-// +build go1.7
+// +build !go1.8
 
 // Copyright 2018 Gin Core Team.  All rights reserved.
 // Use of this source code is governed by a MIT style
diff --git a/response_writer_1.8.go b/response_writer_1.8.go
index c80dc81e..b9e97811 100644
--- a/response_writer_1.8.go
+++ b/response_writer_1.8.go
@@ -1,4 +1,4 @@
-// +build !go1.7
+// +build go1.8
 
 // Copyright 2018 Gin Core Team.  All rights reserved.
 // Use of this source code is governed by a MIT style