Index: head/misc/libmodulemd/Makefile
===================================================================
--- head/misc/libmodulemd/Makefile	(revision 550254)
+++ head/misc/libmodulemd/Makefile	(revision 550255)
@@ -1,26 +1,26 @@
 # $FreeBSD$
 
 PORTNAME=	libmodulemd
 DISTVERSION=	2.9.4
 CATEGORIES=	misc
 MASTER_SITES=	https://github.com/fedora-modularity/${PORTNAME}/releases/download/${PORTNAME}-${DISTVERSION}/
 DISTNAME=	modulemd-${DISTVERSION}
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	C Library for manipulating module metadata files
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 BUILD_DEPENDS=	bash:shells/bash \
 		help2man:misc/help2man
 LIB_DEPENDS=	librpmio.so:archivers/rpm4 \
 		libyaml.so:textproc/libyaml
 
-USES=		gnome meson pkgconfig tar:xz
+USES=		compiler:c11 gnome meson pkgconfig tar:xz
 USE_GNOME=	glib20 introspection:build
 USE_LDCONFIG=	yes
 
 MESON_ARGS=	-Ddeveloper_build=false -Dskip_formatters=true -Dwith_manpages="enabled" -Dwith_docs=false
 
 .include <bsd.port.mk>