diff --git a/vfs/make_open_tests.go b/vfs/make_open_tests.go
index d610b87e0..8fbd34625 100644
--- a/vfs/make_open_tests.go
+++ b/vfs/make_open_tests.go
@@ -169,7 +169,7 @@ func test(fileName string, flags int, mode string) {
 }
 
 func main() {
-	fmt.Printf(`// AUTO GENERATED by make_open_tests.go - DO NOT EDIT - use go generate to rebuild
+	fmt.Printf(`// Code generated by make_open_tests.go - use go generate to rebuild - DO NOT EDIT
 
 package vfs
 
diff --git a/vfs/open_test.go b/vfs/open_test.go
index ad7fce7dc..5fae18691 100644
--- a/vfs/open_test.go
+++ b/vfs/open_test.go
@@ -1,4 +1,4 @@
-// AUTO GENERATED by make_open_tests.go - DO NOT EDIT - use go generate to rebuild
+// Code generated by make_open_tests.go - use go generate to rebuild - DO NOT EDIT
 
 package vfs