diff --git a/net/ttt/Makefile b/net/ttt/Makefile
index f30e77de1cbf..3a99f8a692ec 100644
--- a/net/ttt/Makefile
+++ b/net/ttt/Makefile
@@ -1,7 +1,8 @@
-# $NetBSD: Makefile,v 1.20 2010/02/11 23:06:39 joerg Exp $
+# $NetBSD: Makefile,v 1.21 2010/03/19 15:04:05 joerg Exp $
 #
 
 DISTNAME=	ttt-1.8.2
+PKGREVISION=	1
 CATEGORIES=	net
 MASTER_SITES=	ftp://ftp.sonycsl.co.jp/pub/kjc/
 
@@ -19,6 +20,12 @@ INSTALL_MAKE_FLAGS+=	prefix=${DESTDIR}${PREFIX} \
 			exec_prefix=${DESTDIR}${PREFIX} \
 			mandir=${DESTDIR}${PREFIX}/${PKGMANDIR}
 
+REPLACE_INTERPRETER+=		sys-BLTWISH
+REPLACE.sys-BLTWISH.old=	.*bltwish
+REPLACE.sys-BLTWISH.new=	${PREFIX}/bin/bltwish
+REPLACE_FILES.sys-BLTWISH=	ttt.tcl
+
+
 .include "../../mk/bsd.prefs.mk"
 
 .if ${OPSYS} == "NetBSD"