diff --git a/dns/py-py3dns/Makefile b/dns/py-py3dns/Makefile
index 84ac71cd58e0..dd3ea2fba000 100644
--- a/dns/py-py3dns/Makefile
+++ b/dns/py-py3dns/Makefile
@@ -18,10 +18,9 @@ LICENSE_PERMS=	dist-mirror dist-sell pkg-mirror pkg-sell auto-accept
 TEST_DEPENDS=	${PYTHON_PKGNAMEPREFIX}pytest>=0:devel/py-pytest@${PY_FLAVOR}
 
 USES=		python:3.3+
-USE_PYTHON=	autoplist distutils
+USE_PYTHON=	autoplist concurrent distutils
 
 NO_ARCH=	yes
-WRKSRC=		${WRKDIR}/${PORTNAME}-${PORTVERSION}
 
 do-test:
 	cd ${WRKSRC}/ && ${PYTHON_CMD} -m pytest