diff --git a/src/regexp/syntax/doc.go b/src/regexp/syntax/doc.go
index abc58bb159..877f1043dd 100644
--- a/src/regexp/syntax/doc.go
+++ b/src/regexp/syntax/doc.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// DO NOT EDIT. This file is generated by mksyntaxgo from the RE2 distribution.
+// Code generated by mksyntaxgo from the RE2 distribution. DO NOT EDIT.
 
 /*
 Package syntax parses regular expressions into parse trees and compiles