diff --git a/devel/pecl-yac/Makefile b/devel/pecl-yac/Makefile
index f0f5145ccec0..bfdd7fa61fe5 100644
--- a/devel/pecl-yac/Makefile
+++ b/devel/pecl-yac/Makefile
@@ -1,19 +1,25 @@
 PORTNAME=	yac
 PORTVERSION=	2.2.1
 PORTEPOCH=	1
 CATEGORIES=	devel
 
 MAINTAINER=	oliver@FreeBSD.org
 COMMENT=	Shared memory user data cache for PHP
 WWW=		https://github.com/laruence/yac/wiki
 
 LICENSE=	PHP301
 
 USES=		php:pecl
 
 OPTIONS_DEFINE=	MSGPACK
 MSGPACK_DESC=	Enable MSGPACK module
 MSGPACK_BUILD_DEPENDS=	${LOCALBASE}/lib/php/${PHP_EXT_DIR}/msgpack.so:devel/pecl-msgpack@${PHP_FLAVOR}
 MSGPACK_RUN_DEPENDS=	${LOCALBASE}/lib/php/${PHP_EXT_DIR}/msgpack.so:devel/pecl-msgpack@${PHP_FLAVOR}
 
+.include <bsd.port.options.mk>
+
+.if ${OPSYS} == FreeBSD && ${OSVERSION} >= 1400091
+CFLAGS+=	-Wno-error=incompatible-function-pointer-types
+.endif
+
 .include <bsd.port.mk>