diff --git a/textproc/rubygem-ruby-xslt/Makefile b/textproc/rubygem-ruby-xslt/Makefile
index 8a91c01741be..e8519cd375f4 100644
--- a/textproc/rubygem-ruby-xslt/Makefile
+++ b/textproc/rubygem-ruby-xslt/Makefile
@@ -14,4 +14,10 @@ LICENSE_FILE=	${WRKSRC}/COPYING
 USE_GNOME=	libxslt
 USES=		gem gnome
 
+.include <bsd.port.options.mk>
+
+.if ${OPSYS} == FreeBSD && ( ${OSVERSION} >= 1400091 || ( ${OSVERSION} >= 1302507 && ${OSVERSION} < 1400000 ))
+CONFIGURE_ARGS+=	--with-cflags="-Wno-error=incompatible-function-pointer-types"
+.endif
+
 .include <bsd.port.mk>