diff --git a/src/emqttd_pmon.erl b/src/emqttd_pmon.erl
index dc9554015..e5f286eea 100644
--- a/src/emqttd_pmon.erl
+++ b/src/emqttd_pmon.erl
@@ -1,5 +1,5 @@
 %%--------------------------------------------------------------------
-%% Copyright (c) 2016 Feng Lee <feng@emqtt.io>. All Rights Reserved.
+%% Copyright (c) 2016-2017 Feng Lee <feng@emqtt.io>. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.