diff --git a/util/copyrights b/util/copyrights
index 48cfd90f39..aa5dd77179 100644
--- a/util/copyrights
+++ b/util/copyrights
@@ -2164,7 +2164,7 @@
 ./lib/isc/win32/libisc.dsp			X	2001,2002,2003,2004,2005,2006,2007,2008,2009
 ./lib/isc/win32/libisc.dsw			X	2001
 ./lib/isc/win32/libisc.mak			X	2001,2002,2003,2004,2005,2006,2007,2008,2009
-./lib/isc/win32/net.c				C	1999,2000,2001,2002,2003,2004,2005,2007,2008
+./lib/isc/win32/net.c				C	1999,2000,2001,2002,2003,2004,2005,2007,2008,2009
 ./lib/isc/win32/netdb.h				C	2000,2001,2004,2006,2007,2009
 ./lib/isc/win32/ntgroups.c			C	2001,2004,2006,2007
 ./lib/isc/win32/ntpaths.c			C	2001,2004,2007