diff --git a/util/copyrights b/util/copyrights
index 49757d3af3..5d06c91a46 100644
--- a/util/copyrights
+++ b/util/copyrights
@@ -2133,7 +2133,7 @@
 ./lib/dns/.gitignore				X	2012
 ./lib/dns/Atffile				X	2011
 ./lib/dns/Makefile.in				MAKE	1998,1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012
-./lib/dns/acache.c				C	2004,2005,2006,2007,2008
+./lib/dns/acache.c				C	2004,2005,2006,2007,2008,2012
 ./lib/dns/acl.c					C	1999,2000,2001,2002,2004,2005,2006,2007,2008,2009,2011
 ./lib/dns/adb.c					C	1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012
 ./lib/dns/api					X	1999,2000,2001,2006,2008,2009,2010,2011,2012