diff --git a/security/py-certbot-dns-powerdns/Makefile b/security/py-certbot-dns-powerdns/Makefile
index fcb5cd0f772e..a6a55a42b798 100644
--- a/security/py-certbot-dns-powerdns/Makefile
+++ b/security/py-certbot-dns-powerdns/Makefile
@@ -1,5 +1,6 @@
 PORTNAME=	certbot-dns-powerdns
 PORTVERSION=	0.2.1
+PORTREVISION=	1
 CATEGORIES=	security python
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
@@ -13,7 +14,8 @@ RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}acme>=${ACME_VERSION},1:security/py-acme@${P
 		${PYTHON_PKGNAMEPREFIX}certbot>=${ACME_VERSION},1:security/py-certbot@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}dns-lexicon>=3.2.4:dns/py-dns-lexicon@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}dnspython>0:dns/py-dnspython@${PY_FLAVOR} \
-		${PYTHON_PKGNAMEPREFIX}mock>=4.0.3:devel/py-mock@${PY_FLAVOR}
+		${PYTHON_PKGNAMEPREFIX}mock>=4.0.3:devel/py-mock@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}zope.interface>0:devel/py-zope.interface@${PY_FLAVOR}
 
 USES=		python