Index: head/multimedia/playerctl/Makefile
===================================================================
--- head/multimedia/playerctl/Makefile	(revision 538074)
+++ head/multimedia/playerctl/Makefile	(revision 538075)
@@ -1,34 +1,35 @@
 # Created by: Aaron LI <aly@aaronly.me>
 # $FreeBSD$
 
 PORTNAME=	playerctl
 DISTVERSIONPREFIX=	v
 DISTVERSION=	2.1.1
 CATEGORIES=	multimedia audio
 
 MAINTAINER=	aly@aaronly.me
 COMMENT=	MPRIS command-line controller and library
 
 LICENSE=	LGPL3+
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 USES=		gnome meson pkgconfig
+USE_CSTD=	c99
 USE_GNOME=	glib20
 
 USE_LDCONFIG=	yes
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	altdesktop
 
 OPTIONS_DEFINE=	DOC INTROSPECTION
 OPTIONS_SUB=	yes
 
 DOC_DESC=	Build GTK documentation
 DOC_BUILD_DEPENDS=	gtkdoc-scan:textproc/gtk-doc
 DOC_MESON_TRUE=	gtk-doc
 
 INTROSPECTION_DESC=	Build GObject Introspection
 INTROSPECTION_USE=	gnome=introspection:build
 INTROSPECTION_MESON_TRUE=	introspection
 
 .include <bsd.port.mk>