diff --git a/net/py-zeroconf/Makefile b/net/py-zeroconf/Makefile
index a8a8a512ccb1..ecc2c85829fd 100644
--- a/net/py-zeroconf/Makefile
+++ b/net/py-zeroconf/Makefile
@@ -1,27 +1,29 @@
 PORTNAME=	zeroconf
 PORTVERSION=	0.39.4
+PORTREVISION=	1
 CATEGORIES=	net python
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	jhixson@FreeBSD.org
 COMMENT=	Pure python implementation of multicast DNS service discovery
 WWW=		https://github.com/jstasiak/python-zeroconf
 
 LICENSE=	LGPL21+
 LICENSE_FILE=	${WRKSRC}/COPYING
 
-RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}ifaddr>=0.1.7:net/py-ifaddr@${PY_FLAVOR}
+RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}ifaddr>=0.1.7:net/py-ifaddr@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}async_timeout>=3.0.1:devel/py-async_timeout@${PY_FLAVOR}
 
 USES=		python
 USE_PYTHON=	autoplist concurrent distutils
 USE_GITHUB=	yes
 GH_ACCOUNT=	jstasiak
 GH_PROJECT=	python-zeroconf
 
 NO_ARCH=	yes
 TEST_TARGET=	test
 
 pre-test:
 	${REINPLACE_CMD} -e 's|nosetests|nosetests-${PYTHON_VER} --exclude=test_lots_of_names|g' ${WRKSRC}/Makefile
 
 .include <bsd.port.mk>