diff --git a/textproc/tkdiff/Makefile b/textproc/tkdiff/Makefile
index 9166bc8eb734..18ca2d5df1fa 100644
--- a/textproc/tkdiff/Makefile
+++ b/textproc/tkdiff/Makefile
@@ -1,30 +1,30 @@
 # Created by: Kevin Lo <kevlo@FreeBSD.org>
 
 PORTNAME=	tkdiff
 DISTVERSION=	4-3
 CATEGORIES=	textproc tk
 MASTER_SITES=	SF  https://bsdforge.com/projects/source/textproc/tkdiff/:ikon
 DISTFILES=	${DISTNAME}.zip tkicons.txz:ikon
 
 MAINTAINER=	portmaster@BSDforge.com
 COMMENT=	Tk frontend for diff(1)
 
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/LICENSE.txt
 
-USES=		tar:txz tk:wrapper
+USES=		cpe tar:txz tk:wrapper
 NO_BUILD=	yes
 
 DESKTOP_ENTRIES=	"Tkdiff" "Tk frontend for the diff command" \
 			"tkdiff" \
 			"tkdiff" "GNOME;GTK;Development;System;" \
 			false
 
 IKONS=	tkdiff-256.png tkdiff-128.png \
 	tkdiff-64.png tkdiff.png
 
 do-install:
 	${INSTALL_SCRIPT} ${WRKSRC}/tkdiff ${STAGEDIR}${PREFIX}/bin
 	${INSTALL_DATA} ${IKONS:S/tkdiff/${WRKSRC}\/tkdiff/g} ${STAGEDIR}${PREFIX}/share/pixmaps/
 
 .include <bsd.port.mk>