diff --git a/multimedia/obs-multi-rtmp/Makefile b/multimedia/obs-multi-rtmp/Makefile
index 5a94c20c174b..70a18ae87225 100644
--- a/multimedia/obs-multi-rtmp/Makefile
+++ b/multimedia/obs-multi-rtmp/Makefile
@@ -1,34 +1,35 @@
 PORTNAME=	obs-multi-rtmp
 DISTVERSION=	0.7.3.1
 CATEGORIES=	multimedia
 
 MAINTAINER=	freebsd@sysctl.cz
 COMMENT=	Multistream plugin for OBS Studio
 WWW=		https://github.com/sorayuki/obs-multi-rtmp/
 
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
+BUILD_DEPENDS=	simde>0:devel/simde
 LIB_DEPENDS=	libobs.so:multimedia/obs-studio
 
 USES=		cmake gl qt:6
 USE_GITHUB=	yes
 GH_ACCOUNT=	sorayuki
 USE_GL=		opengl
 USE_QT=		base
 
 CMAKE_ON=	ENABLE_QT
 CMAKE_OFF=	CMAKE_COMPILE_WARNING_AS_ERROR
 
 do-install:
 	${MKDIR} \
 		${STAGEDIR}${PREFIX}/lib/obs-plugins \
 		${STAGEDIR}${PREFIX}/share/obs/obs-plugins/${PORTNAME}/locale
 	${INSTALL_LIB} \
 		${BUILD_WRKSRC}/${PORTNAME}.so \
 		${STAGEDIR}${PREFIX}/lib/obs-plugins
 	${INSTALL_DATA} \
 		${WRKSRC}/data/locale/*.ini \
 		${STAGEDIR}${PREFIX}/share/obs/obs-plugins/${PORTNAME}/locale
 
 .include <bsd.port.mk>