Index: head/accessibility/gammy/Makefile
===================================================================
--- head/accessibility/gammy/Makefile	(revision 557755)
+++ head/accessibility/gammy/Makefile	(revision 557756)
@@ -1,24 +1,24 @@
 # $FreeBSD$
 
 PORTNAME=	gammy
 PORTVERSION=	0.9.59
 DISTVERSIONPREFIX=	v
 CATEGORIES=	accessibility
 
 MAINTAINER=	me@igalic.co
 COMMENT=	Adaptive screen brightness and temperature for Windows and Unix
 
 LICENSE=	GPLv3
 
-USES=		gl qmake qt:5 xorg
+USES=		compiler:c++11-lang gl qmake qt:5 xorg
 USE_QT=		core dbus gui widgets \
 		buildtools_build qmake_build
 USE_GL=		gl
 USE_XORG=	x11 xxf86vm
 
 USE_GITHUB=	YES
 GH_ACCOUNT=	Fushko
 
 PLIST_FILES=	bin/gammy
 
 .include <bsd.port.mk>