Index: head/sysutils/bfs/Makefile
===================================================================
--- head/sysutils/bfs/Makefile	(revision 554856)
+++ head/sysutils/bfs/Makefile	(revision 554857)
@@ -1,28 +1,28 @@
 # $FreeBSD$
 
 PORTNAME=	bfs
 DISTVERSION=	2.0
 CATEGORIES=	sysutils
 
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	Breadth-first version of the UNIX find command
 
 LICENSE=	BSD0CLAUSE
 LICENSE_NAME=	BSD Zero Clause License
 LICENSE_FILE=	${WRKSRC}/LICENSE
 LICENSE_PERMS=	dist-mirror dist-sell pkg-mirror pkg-sell auto-accept
 
 TEST_DEPENDS=	bash:shells/bash
 
-USES=		gmake shebangfix
+USES=		compiler:c11 gmake shebangfix
 USE_GITHUB=	yes
 GH_ACCOUNT=	tavianator
 SHEBANG_FILES=	tests.sh tests/*.sh
 TEST_TARGET=	check
 PLIST_FILES=	bin/bfs \
 		share/man/man1/bfs.1.gz
 
 post-install:
 	${STRIP_CMD} ${STAGEDIR}${PREFIX}/bin/bfs
 
 .include <bsd.port.mk>