diff --git a/graphics/simage/Makefile b/graphics/simage/Makefile
index 6116dc8f5670..b7c6dfc14b90 100644
--- a/graphics/simage/Makefile
+++ b/graphics/simage/Makefile
@@ -1,40 +1,47 @@
 PORTNAME=	simage
 DISTVERSION=	1.8.4
+PORTREVISION=	1
 CATEGORIES=	graphics
 MASTER_SITES=	https://github.com/coin3d/${PORTNAME}/releases/download/v${DISTVERSION}/
 DISTNAME=	${PORTNAME}-${DISTVERSION}-src
 
 MAINTAINER=	florianmarx@free.fr
 COMMENT=	Library with image format loaders and front-ends
 WWW=		https://github.com/coin3d/simage/
 
-LICENSE=		ISC MPEG2ENC
-LICENSE_COMB=		multi
-LICENSE_NAME_ISC=	ISC License
-LICENSE_NAME_MPEG2ENC=	mpeg2enc license
-LICENSE_FILE_ISC=	${WRKSRC}/LICENSE
-LICENSE_FILE_MPEG2ENC=	${WRKSRC}/LICENSE.mpeg2enc
-LICENSE_PERMS_ISC=	dist-mirror dist-sell pkg-mirror pkg-sell
-LICENSE_PERMS_MPEG2ENC=	no-dist-sell no-pkg-sell
+LICENSE=	ISCL
 
 LIB_DEPENDS=	libsndfile.so:audio/libsndfile \
 		libvorbis.so:audio/libvorbis \
 		libFLAC.so:audio/flac \
 		libogg.so:audio/libogg \
 		libopus.so:audio/opus \
 		libzstd.so:archivers/zstd \
 		libgif.so:graphics/giflib \
 		libpng.so:graphics/png \
 		libtiff.so:graphics/tiff \
 		libjasper.so:graphics/jasper
 
 USES=		cmake jpeg localbase:ldflags
 USE_LDCONFIG=	yes
 
-CMAKE_ON=	SIMAGE_MPEG2ENC_SUPPORT
+OPTIONS_DEFINE=		MPEG2ENC
+MPEG2ENC_DESC=		MPEG encodage support (royalty fees implied)
+MPEG2ENC_CMAKE_BOOL=	SIMAGE_MPEG2ENC_SUPPORT
 
 WRKSRC=		${WRKDIR}/${PORTNAME}
 
 PLIST_SUB=	VERSION="${DISTVERSION}"
 
+.include <bsd.port.options.mk>
+
+.if ${PORT_OPTIONS:MMPEG2ENC}
+LICENSE+=		MPEG2ENC
+LICENSE_COMB=		multi
+LICENSE_NAME_MPEG2ENC=	mpeg2enc license
+LICENSE_FILE_ISCL=	${WRKSRC}/LICENSE
+LICENSE_FILE_MPEG2ENC=	${WRKSRC}/LICENSE.mpeg2enc
+LICENSE_PERMS_MPEG2ENC=	no-dist-sell no-pkg-sell
+.endif
+
 .include <bsd.port.mk>