diff --git a/sysutils/clone/Makefile b/sysutils/clone/Makefile
index f6905e1631d5..9801eb3dbeaa 100644
--- a/sysutils/clone/Makefile
+++ b/sysutils/clone/Makefile
@@ -1,23 +1,24 @@
 # $FreeBSD$
 
 PORTNAME=		clone
 DISTVERSIONPREFIX=	v
 DISTVERSION=		1.0.8
 CATEGORIES=		sysutils
 
 MAINTAINER=		cyclaero@gmail.com
 COMMENT=		File tree cloning tool
 
 LICENSE=		BSD2CLAUSE
 
+USES=			compiler:c11
 USE_GITHUB=		yes
 GH_ACCOUNT=		cyclaero
 GH_PROJECT=		clone
 
 PLIST_FILES=		bin/clone \
 			man/man1/clone.1.gz
 
 post-install:
 	${STRIP_CMD} ${STAGEDIR}${PREFIX}/bin/clone
 
 .include <bsd.port.mk>