diff --git a/net/sipp/Makefile b/net/sipp/Makefile
index 814839a..d181392 100644
--- a/net/sipp/Makefile
+++ b/net/sipp/Makefile
@@ -1,5 +1,5 @@
 #
-# Copyright (C) 2013-2018 OpenWrt.org
+# Copyright (C) 2013-2015 OpenWrt.org
 #
 # This is free software, licensed under the GNU General Public License v2.
 # See /LICENSE for more information.