diff --git a/bots/jabber_mirror.py b/bots/jabber_mirror.py
index 4bb15cb..4fb690f 100755
--- a/bots/jabber_mirror.py
+++ b/bots/jabber_mirror.py
@@ -1,7 +1,7 @@
 #!/usr/bin/python
 #
 # Copyright (C) 2013 Permabit, Inc.
-# Copyright (C) 2013-4 Zulip, Inc.
+# Copyright (C) 2013--2014 Zulip, Inc.
 #
 # Permission is hereby granted, free of charge, to any person
 # obtaining a copy of this software and associated documentation files