diff --git a/sysutils/pdumpfs/Makefile b/sysutils/pdumpfs/Makefile
index dbf5b1cae306..6a7559604c23 100644
--- a/sysutils/pdumpfs/Makefile
+++ b/sysutils/pdumpfs/Makefile
@@ -1,38 +1,44 @@
 PORTNAME=	pdumpfs
 PORTVERSION=	1.3
-PORTREVISION=	6
+PORTREVISION=	7
 CATEGORIES=	sysutils
 MASTER_SITES=	http://0xcc.net/pdumpfs/
 
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	Daily backup system similar to Plan9's dumpfs
 WWW=		http://0xcc.net/pdumpfs/
 
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 USES=		ruby shebangfix
 NO_ARCH=	yes
 
 SHEBANG_FILES=	${WRKSRC}/pdumpfs.in
 ALL_TARGET=	pdumpfs
 
 PLIST_FILES=	share/man/ja/man8/pdumpfs.8.gz \
 		share/man/man8/pdumpfs.8.gz \
 		sbin/pdumpfs
 PORTDOCS=	*
 
 OPTIONS_DEFINE=	DOCS
 
+.include <bsd.port.pre.mk>
+
+.if ${RUBY_VER} >= 3.4
+RUN_DEPENDS+=	rubygem-nkf>=0:net/rubygem-nkf
+.endif
+
 do-install:
 	${INSTALL_SCRIPT} ${WRKSRC}/pdumpfs ${STAGEDIR}${PREFIX}/sbin
 	${INSTALL_MAN} ${WRKSRC}/man/man8/pdumpfs.8 ${STAGEDIR}${PREFIX}/share/man/man8
 	${RUBY} -ni -r nkf -e 'puts NKF.nkf("-e",$$_)' ${WRKSRC}/man/ja/man8/pdumpfs.8
 	${MKDIR} ${STAGEDIR}${PREFIX}/share/man/ja/man8
 	${INSTALL_MAN} ${WRKSRC}/man/ja/man8/pdumpfs.8 ${STAGEDIR}${PREFIX}/share/man/ja/man8
 
 do-install-DOCS-on:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
 	cd ${WRKSRC}/doc && ${COPYTREE_SHARE} . ${STAGEDIR}${DOCSDIR}
 
-.include <bsd.port.mk>
+.include <bsd.port.post.mk>