diff --git a/net/libexosip2/Makefile b/net/libexosip2/Makefile
index 1685a4381329..6a4b7c1fa406 100644
--- a/net/libexosip2/Makefile
+++ b/net/libexosip2/Makefile
@@ -1,29 +1,35 @@
 PORTNAME=	libeXosip2
 PORTVERSION=	5.3.0
 CATEGORIES=	net
 MASTER_SITES=	SAVANNAH/exosip
 DISTNAME=	${PORTNAME:tl}-${PORTVERSION}
 
 MAINTAINER=	bofh@FreeBSD.org
 COMMENT=	GPL library that extends the capability of the oSIP library
 WWW=		https://savannah.nongnu.org/projects/exosip
 
 LICENSE=	GPLv2
 
 LIB_DEPENDS=	libosip2.so:net/libosip2
 
 USES=		libtool ssl
 USE_LDCONFIG=	yes
 
 CONFLICTS_INSTALL=	libeXosip2-legacy
 
 GNU_CONFIGURE=	yes
 INSTALL_TARGET=	install-strip
 SHLIB_VER=	15
 
 PLIST_SUB+=	SHLIB_VER=${SHLIB_VER}
 
 CPPFLAGS+=	-I${LOCALBASE}/include
 LIBS+=		-L${LOCALBASE}/lib
 
+.include <bsd.port.options.mk>
+
+.if ${OPSYS} == FreeBSD && ${OSVERSION} >= 1400079
+CFLAGS+=	-Wno-error=int-conversion
+.endif
+
 .include <bsd.port.mk>