diff --git a/devel/py-rchitect/Makefile b/devel/py-rchitect/Makefile
index 8af869667926..4bb2231071a7 100644
--- a/devel/py-rchitect/Makefile
+++ b/devel/py-rchitect/Makefile
@@ -1,21 +1,27 @@
 PORTNAME=	rchitect
 DISTVERSION=	0.3.24
 CATEGORIES=	devel python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Interoperate R with Python
 WWW=		https://github.com/randy3k/rchitect
 
 LICENSE=	MIT
 
 BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}cffi>=1.10.0:devel/py-cffi@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}pytest-runner>0:devel/py-pytest-runner@${PY_FLAVOR}
 RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}cffi>=1.10.0:devel/py-cffi@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}six>=1.9.0:devel/py-six@${PY_FLAVOR}
 
 USES=		python:3.6+
 USE_PYTHON=	distutils autoplist
 
-.include <bsd.port.mk>
+.include <bsd.port.pre.mk>
+
+.if ${OPSYS} == FreeBSD && ${OSVERSION} >= 1400079
+CFLAGS+=	-Wno-error=int-conversion
+.endif
+
+.include <bsd.port.post.mk>