diff --git a/util/copyrights b/util/copyrights
index 50de56d29d..2fa342d508 100644
--- a/util/copyrights
+++ b/util/copyrights
@@ -6,7 +6,7 @@
 ./FAQ						X	2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2013
 ./FAQ.xml					SGML	2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2012,2013
 ./KNOWN-DEFECTS					X	2009
-./Makefile.in					MAKE	1998,1999,2000,2001,2002,2004,2005,2006,2007,2008,2009,2011,2012
+./Makefile.in					MAKE	1998,1999,2000,2001,2002,2004,2005,2006,2007,2008,2009,2011,2012,2013
 ./NSEC3-NOTES					X	2008,2009
 ./README					X	1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013
 ./README.idnkit					X	2005,2009,2012