diff --git a/lib/dns/zt.c b/lib/dns/zt.c
index 28e285542f..ffc76bbeb5 100644
--- a/lib/dns/zt.c
+++ b/lib/dns/zt.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2004-2007, 2011-2014  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2004-2007, 2011-2015  Internet Systems Consortium, Inc. ("ISC")
  * Copyright (C) 1999-2002  Internet Software Consortium.
  *
  * Permission to use, copy, modify, and/or distribute this software for any