diff --git a/util/copyrights b/util/copyrights
index a60dfbf59f..6dce3a7472 100644
--- a/util/copyrights
+++ b/util/copyrights
@@ -3338,7 +3338,7 @@
 ./lib/isc/unix/interfaceiter.c			C	1999,2000,2001,2002,2003,2004,2005,2007,2008,2014
 ./lib/isc/unix/ipv6.c				C	1999,2000,2001,2004,2005,2006,2007
 ./lib/isc/unix/keyboard.c			C	2000,2001,2004,2007
-./lib/isc/unix/net.c				C	1999,2000,2001,2002,2003,2004,2005,2007,2008,2012,2014
+./lib/isc/unix/net.c				C	1999,2000,2001,2002,2003,2004,2005,2007,2008,2012,2014,2015
 ./lib/isc/unix/os.c				C	2000,2001,2004,2005,2007
 ./lib/isc/unix/resource.c			C	2000,2001,2004,2007,2008,2009
 ./lib/isc/unix/socket.c				C	1998,1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015