diff --git a/web/gui/src/main/webapp/app/fw/layer/dialog.css b/web/gui/src/main/webapp/app/fw/layer/dialog.css
index b132417..105eebd 100644
--- a/web/gui/src/main/webapp/app/fw/layer/dialog.css
+++ b/web/gui/src/main/webapp/app/fw/layer/dialog.css
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 Open Networking Laboratory
+ * Copyright 2016-present Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.