diff --git a/net/knxd/Makefile b/net/knxd/Makefile
index 5e7feb84baef..2ee02d77f7c0 100644
--- a/net/knxd/Makefile
+++ b/net/knxd/Makefile
@@ -1,36 +1,36 @@
 # Created by: mfechner@FreeBSD.org
 # $FreeBSD$
 
 PORTNAME=	knxd
 PORTVERSION=	0.14.35
 PORTREVISION=	1
 CATEGORIES=	net
 
 MAINTAINER=	mfechner@FreeBSD.org
 COMMENT=	Advanced router/gateway for KNX
 
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 LIB_DEPENDS=	libargp.so:devel/argp-standalone \
 		libev.so:devel/libev \
 		libfmt.so:devel/libfmt
 
 USES=		autoreconf compiler:c11 gmake libtool pkgconfig
 USE_RC_SUBR=	knxd
 USE_GITHUB=	yes
 USE_LDCONFIG=	yes
 
 INSTALL_TARGET=	install-strip
 GH_ACCOUNT=	knxd
 GH_PROJECT=	knxd
 GH_TAGNAME=	7a3c5e065e5ab26eeb14257c8dff05fa94e9373e
 GNU_CONFIGURE=	yes
 CONFIGURE_ARGS?=--disable-systemd --disable-usb \
 		CPPFLAGS="-I${LOCALBASE}/include" \
 		LDFLAGS="-I${LOCALBASE}/include -L/${LOCALBASE}/lib"
 
 post-install:
-	(cd ${WRKSRC} && src/server/knxd_args -d -e 15.15.1 -E 15.15.2:8 -D -T -S -b ipt:192.168.0.117 -u /var/run/knxd > ${STAGEDIR}${PREFIX}/etc/knxd.conf.sample)
+	(cd ${WRKSRC} && src/server/knxd_args -d -e 15.15.1 -E 15.15.2:8 -D -T -S -B single -b ipt:192.168.0.117 -u /var/run/knxd > ${STAGEDIR}${PREFIX}/etc/knxd.conf.sample)
 
 .include <bsd.port.mk>