diff --git a/util/copyrights b/util/copyrights
index 20ff66f76b..dfe7fa7cb6 100644
--- a/util/copyrights
+++ b/util/copyrights
@@ -2375,7 +2375,7 @@
 ./lib/dns/rdata/generic/minfo_14.h		C	1998,1999,2000,2001,2004,2005,2007
 ./lib/dns/rdata/generic/mr_9.c			C	1998,1999,2000,2001,2004,2007,2009
 ./lib/dns/rdata/generic/mr_9.h			C	1998,1999,2000,2001,2004,2005,2007
-./lib/dns/rdata/generic/mx_15.c			C	1998,1999,2000,2001,2003,2004,2005,2007,2009
+./lib/dns/rdata/generic/mx_15.c			C	1998,1999,2000,2001,2003,2004,2005,2007,2009,2012
 ./lib/dns/rdata/generic/mx_15.h			C	1998,1999,2000,2001,2004,2005,2007
 ./lib/dns/rdata/generic/naptr_35.c		C	1999,2000,2001,2003,2004,2005,2007,2008,2009,2011,2012
 ./lib/dns/rdata/generic/naptr_35.h		C	1999,2000,2001,2004,2005,2007,2011,2012