Index: head/devel/cligen/Makefile
===================================================================
--- head/devel/cligen/Makefile	(revision 557237)
+++ head/devel/cligen/Makefile	(revision 557238)
@@ -1,21 +1,21 @@
 # $FreeBSD$
 
 PORTNAME=	cligen
 PORTVERSION=	4.8.0
 CATEGORIES=	devel
 
 MAINTAINER=	dcornejo@netgate.com
 COMMENT=	Command-line interface generator
 
 LICENSE=	APACHE20
 LICENSE_FILE=	${WRKSRC}/LICENSE.md
 
-USES=		bison:alias gmake
+USES=		bison:alias compiler:c11 gmake
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	clicon
 
 GNU_CONFIGURE=	yes
 USE_LDCONFIG=	yes
 
 .include <bsd.port.mk>