diff --git a/net/dtcp/Makefile b/net/dtcp/Makefile
index 94d8f20efe26..f83deb952e43 100644
--- a/net/dtcp/Makefile
+++ b/net/dtcp/Makefile
@@ -1,28 +1,34 @@
 PORTNAME=	dtcp
 PORTVERSION=	20130602
 PORTREVISION=	5
 CATEGORIES=	net
 MASTER_SITES=	http://www.mahoroba.org/~ume/ipv6/
 
 MAINTAINER=	ume@FreeBSD.org
 COMMENT=	Dynamic Tunnel Configuration Protocol daemon and client
 WWW=		https://www.mahoroba.org/~ume/dtcp/
 
 LICENSE=	BSD3CLAUSE
 
 RUN_DEPENDS=	rubygem-dbm>0:databases/rubygem-dbm
 .if defined(WITH_QPOPAUTH)
 RUN_DEPENDS+=	qpopauth:mail/qpopper
 .endif
 
 USES=		ruby uidfix
 USE_RC_SUBR=	dtcpc dtcps
 MAKE_ENV+=	RUBY=${RUBY}
 
 SUB_LIST+=	RUBY=${RUBY}
 
 PLIST_FILES=	sbin/dtcpauth sbin/dtcpc sbin/dtcps \
 		share/man/man8/dtcpauth.8.gz share/man/man8/dtcpc.8.gz \
 		share/man/man8/dtcps.8.gz
 
-.include <bsd.port.mk>
+.include <bsd.port.pre.mk>
+
+.if ${RUBY_VER} >= 3.4
+RUN_DEPENDS+=	rubygem-syslog>0:devel/rubygem-syslog
+.endif
+
+.include <bsd.port.post.mk>