diff --git a/util/copyrights b/util/copyrights
index 1110e77e81..aba043fa92 100644
--- a/util/copyrights
+++ b/util/copyrights
@@ -2987,7 +2987,7 @@
 ./lib/isc/nothreads/include/isc/condition.h	C	2000,2001,2004,2007
 ./lib/isc/nothreads/include/isc/mutex.h		C	2000,2001,2004,2007
 ./lib/isc/nothreads/include/isc/once.h		C	2000,2001,2004,2007
-./lib/isc/nothreads/include/isc/thread.h	C	2000,2001,2004,2007
+./lib/isc/nothreads/include/isc/thread.h	C	2000,2001,2004,2007,2013
 ./lib/isc/nothreads/mutex.c			C	2000,2001,2004,2006,2007
 ./lib/isc/nothreads/thread.c			C	2000,2001,2004,2007
 ./lib/isc/ondestroy.c				C	2000,2001,2004,2005,2007
@@ -3006,7 +3006,7 @@
 ./lib/isc/pthreads/include/isc/condition.h	C	1998,1999,2000,2001,2004,2005,2007
 ./lib/isc/pthreads/include/isc/mutex.h		C	1998,1999,2000,2001,2002,2004,2005,2007
 ./lib/isc/pthreads/include/isc/once.h		C	1999,2000,2001,2004,2005,2007
-./lib/isc/pthreads/include/isc/thread.h		C	1998,1999,2000,2001,2004,2005,2007
+./lib/isc/pthreads/include/isc/thread.h		C	1998,1999,2000,2001,2004,2005,2007,2013
 ./lib/isc/pthreads/mutex.c			C	2000,2001,2002,2004,2005,2007,2008,2011,2012
 ./lib/isc/pthreads/thread.c			C	2000,2001,2003,2004,2005,2007,2013
 ./lib/isc/quota.c				C	2000,2001,2004,2005,2007