diff --git a/cad/qucs-s/Makefile b/cad/qucs-s/Makefile
index b94ba700bbf4..9848896ba127 100644
--- a/cad/qucs-s/Makefile
+++ b/cad/qucs-s/Makefile
@@ -1,24 +1,26 @@
 PORTNAME=	qucs-s
 DISTVERSION=	0.0.24
+PORTREVISION=	1
 CATEGORIES=	cad
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Quite Universal Circuit Simulator: GUI for circuit simulation kernels
 
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/COPYING
 
-RUN_DEPENDS=	ngspice:cad/ngspice_rework
+RUN_DEPENDS=	ngspice:cad/ngspice_rework \
+		octave:math/octave
 
 USES=		cmake qt:5
 USE_QT=		core gui printsupport svg widgets buildtools_build linguisttools_build qmake_build
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	ra3xdh
 GH_PROJECT=	qucs_s
 
 post-patch:
 	# first the patch under files/ introduces %%PREFIX%%, and now we fix it here
 	@${REINPLACE_CMD} -e 's|%%PREFIX%%|${PREFIX}|' ${WRKSRC}/qucs/main.cpp
 
 .include <bsd.port.mk>