diff --git a/SoObjects/Mailer/NSDictionary+Mail.h b/SoObjects/Mailer/NSDictionary+Mail.h
index bdc54a704..b451738af 100644
--- a/SoObjects/Mailer/NSDictionary+Mail.h
+++ b/SoObjects/Mailer/NSDictionary+Mail.h
@@ -1,6 +1,6 @@
 /* NSDictionary+Mail.h - this file is part of SOGo
  *
- * Copyright (C) 2013 Inverse inc.
+ * Copyright (C) 2013-2017 Inverse inc.
  *
  * This file is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by