diff --git a/graphics/ffmpeg/Makefile b/graphics/ffmpeg/Makefile
index 9a44c2729b1b..e630172144d3 100644
--- a/graphics/ffmpeg/Makefile
+++ b/graphics/ffmpeg/Makefile
@@ -13,6 +13,7 @@ MASTER_SITE_SUBDIR=	${PORTNAME}
 
 MAINTAINER=	lioux@FreeBSD.org
 
+BUILD_DEPENDS=	nasm:${PORTSDIR}/devel/nasm
 LIB_DEPENDS=	gnugetopt.1:${PORTSDIR}/devel/libgnugetopt
 
 WRKSRC=		${WRKDIR}/${PORTNAME}
diff --git a/multimedia/ffmpeg-devel/Makefile b/multimedia/ffmpeg-devel/Makefile
index 9a44c2729b1b..e630172144d3 100644
--- a/multimedia/ffmpeg-devel/Makefile
+++ b/multimedia/ffmpeg-devel/Makefile
@@ -13,6 +13,7 @@ MASTER_SITE_SUBDIR=	${PORTNAME}
 
 MAINTAINER=	lioux@FreeBSD.org
 
+BUILD_DEPENDS=	nasm:${PORTSDIR}/devel/nasm
 LIB_DEPENDS=	gnugetopt.1:${PORTSDIR}/devel/libgnugetopt
 
 WRKSRC=		${WRKDIR}/${PORTNAME}
diff --git a/multimedia/ffmpeg/Makefile b/multimedia/ffmpeg/Makefile
index 9a44c2729b1b..e630172144d3 100644
--- a/multimedia/ffmpeg/Makefile
+++ b/multimedia/ffmpeg/Makefile
@@ -13,6 +13,7 @@ MASTER_SITE_SUBDIR=	${PORTNAME}
 
 MAINTAINER=	lioux@FreeBSD.org
 
+BUILD_DEPENDS=	nasm:${PORTSDIR}/devel/nasm
 LIB_DEPENDS=	gnugetopt.1:${PORTSDIR}/devel/libgnugetopt
 
 WRKSRC=		${WRKDIR}/${PORTNAME}
diff --git a/multimedia/ffmpeg045/Makefile b/multimedia/ffmpeg045/Makefile
index 9a44c2729b1b..e630172144d3 100644
--- a/multimedia/ffmpeg045/Makefile
+++ b/multimedia/ffmpeg045/Makefile
@@ -13,6 +13,7 @@ MASTER_SITE_SUBDIR=	${PORTNAME}
 
 MAINTAINER=	lioux@FreeBSD.org
 
+BUILD_DEPENDS=	nasm:${PORTSDIR}/devel/nasm
 LIB_DEPENDS=	gnugetopt.1:${PORTSDIR}/devel/libgnugetopt
 
 WRKSRC=		${WRKDIR}/${PORTNAME}