-Everything else is copyright 1999-2005 by Joey Hess, under the terms of GPL.
-The full text of the GNU GPL can be found in /usr/share/common-licenses/GPL
-on Debian systems.
+The pirate filter was converted from a php version in the funfilters, which
+are Copyright 2003 by Dougal Campbell and are licensed under the GPL.
+
+The kenny filter is copyright (C) 2001,2002 by Christian Garbs
+<mitch@cgarbs.de>, Alan Eldridge <alane@geeksrus.net>, and is licensed
+under the Artistic license.
+
+The scottish fileter is copyright 2007 by Adam Borowski
+<kilobyte@angband.pl>, and is licensed under the GPL.
+
+Everything else is copyright 1999-2007 by Joey Hess, under the terms of
+GPL.
+
+On Debian systems, the full text of the GNU GPL can be found in
+/usr/share/common-licenses/GPL and the Artistic license in
+/usr/share/common-licenses/Artistic