diff --git a/unit/Makefile.in b/unit/Makefile.in
index 4b169b63a4..d3a9c02d7f 100644
--- a/unit/Makefile.in
+++ b/unit/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2011  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2011, 2012, 2017  Internet Systems Consortium, Inc. ("ISC")
 #
 # Permission to use, copy, modify, and/or distribute this software for any
 # purpose with or without fee is hereby granted, provided that the above