diff --git a/net/libproxy/Makefile b/net/libproxy/Makefile
index 5bc17cba78c1..8ca3a19384b2 100644
--- a/net/libproxy/Makefile
+++ b/net/libproxy/Makefile
@@ -1,67 +1,73 @@
 PORTNAME=	libproxy
 DISTVERSION=	0.4.17
 PORTREVISION?=	1
 CATEGORIES?=	net devel
 MASTER_SITES=	https://github.com/${PORTNAME}/${PORTNAME}/releases/download/${DISTVERSION}/
 
 MAINTAINER=	desktop@FreeBSD.org
 COMMENT?=	Library that provides automatic proxy configuration management
 WWW=		https://libproxy.github.io/libproxy/
 
 LICENSE=	LGPL21+
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 USES+=		cmake cpe pathfix pkgconfig tar:xz
 CPE_VENDOR=	libproxy_project
 PATHFIX_CMAKELISTSTXT=	devfiles.cmk
 
 CMAKE_ON+=	WITH_VALA
 CMAKE_OFF+=	BIPR WITH_DOTNET WITH_NATUS WITH_NM WITH_NMold
 
 # Slave ports.
 LIBPROXY_SLAVES=	library gnome3 kde mozjs python perl webkit3
 
 # If nothing is set, we're building the library, i.e. this port.
 LIBPROXY_SLAVE?=	library
 
 PLIST_SUB+=	VERSION=${PORTVERSION}
 
 # Activate the wanted module, and deactivate the others
 CMAKE_ON+=	WITH_${LIBPROXY_SLAVE:tu}
 CMAKE_OFF+=	${LIBPROXY_SLAVES:N${LIBPROXY_SLAVE}:tu:S/^/WITH_/}
 
 # Setup slave ports.
 .if ${LIBPROXY_SLAVE:Nlibrary}
 USES+=		localbase
 LIB_DEPENDS+=	libproxy.so:net/libproxy
 DESCR=		${.CURDIR:H}/${PORTNAME}-${LIBPROXY_SLAVE}/pkg-descr
 PLIST=		${.CURDIR:H}/${PORTNAME}-${LIBPROXY_SLAVE}/pkg-plist
 .endif
 
 .if ${LIBPROXY_SLAVE:Mwebkit3}
 # Additionally to WITH_WEBKIT3 also WITH_WEBKIT is required.
 CMAKE_ON+=	WITH_WEBKIT
 CMAKE_OFF:=	${CMAKE_OFF:C/WITH_WEBKIT//}
 .endif
 
 .if ${LIBPROXY_SLAVE:Mpacrunner}
 LIB_DEPENDS+=	 libdbus-1.so:devel/dbus
 CMAKE_ON=	BUILD_CONFIG_PACRUNNER
 .endif
 
 .if ${LIBPROXY_SLAVE:Mkde} || ${LIBPROXY_SLAVE:Mwebkit3}
 RUN_DEPENDS+=	libproxy-pacrunner>=${DISTVERSION}:net/libproxy-pacrunner
 .endif
 
 .include <bsd.port.pre.mk>
 
+.if ${OPSYS} == FreeBSD && ${OSVERSION} >= 1400079
+.if ${LIBPROXY_SLAVE:Mperl}
+CFLAGS+=	-Wno-error=int-conversion
+.endif
+.endif
+
 # Hackery for the to python backends.
 .if ${LIBPROXY_SLAVE:Mpython}
 CMAKE_ON+=		WITH_PYTHON3
 CMAKE_OFF+=		WITH_PYTHON2
 CMAKE_ARGS+=		-DPYTHON3_EXECUTABLE:FILEPATH=${PYTHON_CMD}
 .else
 CMAKE_OFF+=		WITH_PYTHON2 WITH_PYTHON3
 .endif
 
 .include <bsd.port.post.mk>