diff --git a/util/copyrights b/util/copyrights
index 37014967b3..b38574cfb4 100644
--- a/util/copyrights
+++ b/util/copyrights
@@ -3152,7 +3152,7 @@
 ./lib/dns/zt.c					C	1999,2000,2001,2002,2004,2005,2006,2007,2011,2012,2014
 ./lib/export/Makefile.in			MAKE	2009,2012
 ./lib/export/dns/.gitignore			X	2012,2013
-./lib/export/dns/Makefile.in			MAKE	2009,2010,2011,2012,2013,2015
+./lib/export/dns/Makefile.in			MAKE	2009,2010,2011,2012,2013,2015,2016
 ./lib/export/dns/include/Makefile.in		MAKE	2009,2012
 ./lib/export/dns/include/dns/Makefile.in	MAKE	2009,2012,2015
 ./lib/export/dns/include/dst/Makefile.in	MAKE	2009,2012,2015