diff --git a/devel/volk/Makefile b/devel/volk/Makefile
index 7388ea905ef69..df04a2877fd70 100644
--- a/devel/volk/Makefile
+++ b/devel/volk/Makefile
@@ -13,7 +13,7 @@ LICENSE=	GPLv3
 LIB_DEPENDS=	liborc-0.4.so:devel/orc
 BUILD_DEPENDS=	${PYTHON_SITELIBDIR}/mako/__init__.py:textproc/py-mako@${PY_FLAVOR}
 
-USES=		cmake python:3.5+
+USES=		cmake compiler:c++11-lang python:3.5+
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	gnuradio