diff --git a/databases/py-postgresql/Makefile b/databases/py-postgresql/Makefile
index 3b8da9df1fe1..e00a753494c8 100644
--- a/databases/py-postgresql/Makefile
+++ b/databases/py-postgresql/Makefile
@@ -1,18 +1,24 @@
 PORTNAME=	postgresql
 PORTVERSION=	1.3.0
 CATEGORIES=	databases python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 DISTNAME=	py-${PORTNAME}-${PORTVERSION}
 DIST_SUBDIR=	postgresql
 
 MAINTAINER=	arcade@b1t.name
 COMMENT=	Python 3 compatible PostgreSQL database driver and tools
 WWW=		https://github.com/python-postgres/fe
 
 LICENSE=	BSD3CLAUSE
 
 USES=		pgsql python:3.3+
 USE_PYTHON=	distutils autoplist
 
-.include <bsd.port.mk>
+.include <bsd.port.pre.mk>
+
+.if ${OPSYS} == FreeBSD && ( ${OSVERSION} >= 1400079 || ( ${OSVERSION} >= 1302505 && ${OSVERSION} < 1400000 ))
+CFLAGS+=	-Wno-error=int-conversion
+.endif
+
+.include <bsd.port.post.mk>