Index: head/audio/jacktrip/Makefile
===================================================================
--- head/audio/jacktrip/Makefile	(revision 535502)
+++ head/audio/jacktrip/Makefile	(revision 535503)
@@ -1,26 +1,26 @@
 # $FreeBSD$
 
 PORTNAME=	jacktrip
 DISTVERSIONPREFIX=	v
 DISTVERSION=	1.1-132
 DISTVERSIONSUFFIX=	-g5dd7740
 CATEGORIES=	audio
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Multi-machine audio network performance over the Internet
 
 LICENSE=	MIT
 
 LIB_DEPENDS=	libjack.so:audio/jack
 
-USES=		qt:5 qmake
+USES=		compiler:c++11-lang qmake qt:5
 USE_GITHUB=	yes
 USE_QT=		core network buildtools_build
 
 CXXFLAGS+=	-D__LINUX__
 
 WRKSRC_SUBDIR=	src
 
 PLIST_FILES=	bin/jacktrip
 
 .include <bsd.port.mk>