diff --git a/sys/netipx/README b/sys/netipx/README
index 01b66201bb2..2e23ffdf3db 100644
--- a/sys/netipx/README
+++ b/sys/netipx/README
@@ -20,7 +20,7 @@ jhay@mikom.csir.co.za
 Copyright (c) 1984, 1985, 1986, 1987, 1993
 The Regents of the University of California.  All rights reserved.
 
-Modifications Copyright (c) 2004 Robert N. M. Watson
+Modifications Copyright (c) 2004-2005 Robert N. M. Watson
 Modifications Copyright (c) 1995, Mike Mitchell
 Modifications Copyright (c) 1995, John Hay