Index: head/devel/py-libzfs/Makefile
===================================================================
--- head/devel/py-libzfs/Makefile	(revision 436721)
+++ head/devel/py-libzfs/Makefile	(revision 436722)
@@ -1,40 +1,40 @@
 # Created by: William Grzybowski <wg@FreeBSD.org>
 # $FreeBSD$
 
 PORTNAME=	libzfs
 PORTVERSION=	1.0.20170319
 CATEGORIES=	devel python
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	wg@FreeBSD.org
 COMMENT=	Python libzfs bindings
 
 LICENSE=	BSD2CLAUSE
 
 USE_GITHUB=     yes
 GH_ACCOUNT=	freenas
 GH_PROJECT=	py-libzfs
 GH_TAGNAME=	fb5b8f2
 
 USES?=		python
 USE_PYTHON=	autoplist distutils
 
 MAKE_ENV=	FREEBSD_SRC=${SRC_BASE}
 
 .include <bsd.port.pre.mk>
 
 .if ${PYTHON_REL} >= 3306
-BUILD_DEPENDS=	cython>0:lang/cython3
+BUILD_DEPENDS=	cython3>0:lang/cython3
 .else
 BUILD_DEPENDS=	cython>0:lang/cython
 .endif
 
 .if ${PYTHON_REL} < 3400
 RUN_DEPENDS+=	${PYTHON_PKGNAMEPREFIX}enum34>0:devel/py-enum34
 .endif
 
 .if !exists(${SRC_BASE}/sys/Makefile)
 IGNORE=	requires kernel source files in ${SRC_BASE}
 .endif
 
 .include <bsd.port.post.mk>
Index: head/lang/cython3/Makefile
===================================================================
--- head/lang/cython3/Makefile	(revision 436721)
+++ head/lang/cython3/Makefile	(revision 436722)
@@ -1,5 +1,6 @@
 MASTERDIR=	${.CURDIR}/../cython
+PKGNAMESUFFIX=	3
 
 USES=		python:3.3+
 
 .include "${MASTERDIR}/Makefile"