diff --git a/server/util_test.go b/server/util_test.go
index 59261448b84..159157c0f2b 100644
--- a/server/util_test.go
+++ b/server/util_test.go
@@ -1,4 +1,4 @@
-// Copyright 2016 PingCAP, Inc.
+// Copyright 2018 PingCAP, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.