diff --git a/benchmarks/siege/Makefile b/benchmarks/siege/Makefile
index 11621c9c6942..066b4f2d8a3a 100644
--- a/benchmarks/siege/Makefile
+++ b/benchmarks/siege/Makefile
@@ -1,25 +1,31 @@
 PORTNAME=	siege
 PORTVERSION=	4.1.6
 CATEGORIES=	benchmarks www
 MASTER_SITES=	http://download.joedog.org/siege/ \
 		http://fossies.org/linux/www/
 
 MAINTAINER=	bofh@FreeBSD.org
 COMMENT=	HTTP regression testing and benchmarking utility
 WWW=		https://www.joedog.org/JoeDog/Siege
 
 LICENSE=	GPLv2
 
 USES=		autoreconf libtool perl5 ssl
 
 GNU_CONFIGURE=	yes
 CONFIGURE_ARGS=	--disable-shared \
 		--sysconfdir=${ETCDIR} \
 		--with-ssl=${OPENSSLBASE}
 CONFIGURE_ENV=	PERL="${PERL}"
 
+.include <bsd.port.options.mk>
+
+.if ${OPSYS} == FreeBSD && ${OSVERSION} >= 1400079
+CFLAGS+=	-Wno-error=int-conversion
+.endif
+
 pre-configure:
 	@${RM} ${WRKSRC}/acinclude.m4
 	@${RM} ${WRKSRC}/utils/missing
 
 .include <bsd.port.mk>