diff --git a/util/copyrights b/util/copyrights
index e1ce033cfcca58cf17498ac7235a0f8c2594a687..69e612d7a50006da7e7dbc12d6d03b0c05e3b88a 100644
--- a/util/copyrights
+++ b/util/copyrights
@@ -3878,7 +3878,7 @@
 ./lib/dns/request.c				C	2000,2001,2002,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015,2016
 ./lib/dns/resolver.c				C	1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015,2016,2017
 ./lib/dns/result.c				C	1998,1999,2000,2001,2002,2003,2004,2005,2007,2008,2009,2010,2011,2012,2013,2014,2015,2016
-./lib/dns/rootns.c				C	1999,2000,2001,2002,2004,2005,2007,2008,2010,2012,2013,2014,2015,2016
+./lib/dns/rootns.c				C	1999,2000,2001,2002,2004,2005,2007,2008,2010,2012,2013,2014,2015,2016,2017
 ./lib/dns/rpz.c					C	2011,2012,2013,2014,2015,2016,2017
 ./lib/dns/rriterator.c				C	2009,2011,2012,2015,2016
 ./lib/dns/rrl.c					C	2012,2013,2014,2015,2016