Index: head/audio/ncpamixer/Makefile
===================================================================
--- head/audio/ncpamixer/Makefile	(revision 549110)
+++ head/audio/ncpamixer/Makefile	(revision 549111)
@@ -1,26 +1,26 @@
 # $FreeBSD$
 
 PORTNAME=	ncpamixer
 DISTVERSION=	1.3.3.1
 CATEGORIES=	audio
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Ncurses PulseAudio mixer
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/../LICENSE
 
 LIB_DEPENDS=	libpulse.so:audio/pulseaudio
 
-USES=		cmake ncurses:port
+USES=		cmake compiler:c++17-lang ncurses:port
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	fulhax
 
 WRKSRC_SUBDIR=	src
 
 CFLAGS+=	-I/usr/local/include/ncurses # USES=ncurses:port fails to add this
 
 PLIST_FILES=	bin/${PORTNAME}
 
 .include <bsd.port.mk>