diff --git a/irc/pounce/Makefile b/irc/pounce/Makefile
index e2f105502db3..8a743ff3efd0 100644
--- a/irc/pounce/Makefile
+++ b/irc/pounce/Makefile
@@ -1,37 +1,37 @@
 PORTNAME=	pounce
 DISTVERSION=	2.4
 CATEGORIES=	irc
 MASTER_SITES=	https://git.causal.agency/pounce/snapshot/
 
 MAINTAINER=	june@causal.agency
 COMMENT=	Multi-client IRC bouncer
 
 LICENSE=	GPLv3+
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
-USES=		localbase:ldflags ssl
+USES=		compiler:c11 localbase:ldflags ssl
 USE_RC_SUBR=	calico pounce
 
 MAKE_ENV+=	MANDIR=${MANPREFIX}/man
 CFLAGS+=	-D'OPENSSL_BIN=\"${OPENSSL_BIN}\"'
 CFLAGS+=	-D'CERTBOT_PATH=\"${LOCALBASE}/etc/letsencrypt\"'
 
 .include <bsd.port.pre.mk>
 
 .if ${SSL_DEFAULT} == base || ${SSL_DEFAULT} == openssl
 LIB_DEPENDS+=	libtls.so:security/libretls
 .endif
 
 .if ${SSL_DEFAULT} == base
 OPENSSL_BIN=/usr/bin/openssl
 .else
 OPENSSL_BIN=${LOCALBASE}/bin/openssl
 .endif
 
 post-install:
 	@${MKDIR} ${STAGEDIR}/var/run/calico
 .for b in calico pounce
 	${STRIP_CMD} ${STAGEDIR}${PREFIX}/bin/${b}
 .endfor
 
 .include <bsd.port.post.mk>