Index: head/net-im/libqmatrixclient/Makefile
===================================================================
--- head/net-im/libqmatrixclient/Makefile	(revision 494997)
+++ head/net-im/libqmatrixclient/Makefile	(revision 494998)
@@ -1,21 +1,21 @@
 # $FreeBSD$
 
 PORTNAME=	libqmatrixclient
 DISTVERSIONPREFIX=	v
 DISTVERSION=	0.4.2.1
 CATEGORIES=	net-im
 
 MAINTAINER=	adridg@FreeBSD.org
 COMMENT=	Matrix IM support library using Qt technologies
 
 LICENSE=	LGPL21
 LICENSE_FILES=	${WRKSRC}/COPYING
 
-USES=	cmake qt:5 tar:xz
+USES=	cmake compiler:c++11-lang qt:5 tar:xz
 USE_QT=	core gui network \
 	buildtools_build qmake_build
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	QMatrixClient
 
 .include <bsd.port.mk>