diff --git a/devel/py-lxml/Makefile b/devel/py-lxml/Makefile
index deafb73ffae6..40be577cb179 100644
--- a/devel/py-lxml/Makefile
+++ b/devel/py-lxml/Makefile
@@ -1,50 +1,54 @@
 # Created by: Robert Gogolok <gogo@cs.uni-sb.de>
 
 PORTNAME=	lxml
 PORTVERSION=	4.6.4
 CATEGORIES=	devel python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	amdmi3@FreeBSD.org
 COMMENT=	Pythonic binding for the libxml2 and libxslt libraries
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/doc/licenses/BSD.txt
 
 USES=		compiler cpe gnome python:3.6+ uniquefiles:dirs
 USE_GNOME=	libxml2 libxslt
-USE_PYTHON=	autoplist concurrent distutils
+USE_PYTHON=	autoplist concurrent cython distutils
 
 LDFLAGS+=	-Wl,-rpath=${LOCALBASE}/lib
 
 DOCS_FILES=	CHANGES.txt CREDITS.txt TODO.txt README.rst
 PORTDOCS=	*
 
 OPTIONS_DEFINE=	DOCS
 
 # needed for test to work
 PYDISTUTILS_BUILD_TARGET=	build_ext
-PYDISTUTILS_BUILDARGS=	--inplace
+PYDISTUTILS_BUILDARGS=		--inplace
+
+# force regeneration of cython files
+post-extract:
+	@${FIND} ${WRKSRC} -name "*.c" -delete
 
 post-install:
 	@${FIND} ${STAGEDIR}${PYTHONPREFIX_SITELIBDIR} \
 		-name '*.so' -exec ${STRIP_CMD} {} +
 
 post-install-DOCS-on:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
 	${INSTALL_DATA} ${DOCS_FILES:S,^,${WRKSRC}/,} ${STAGEDIR}${DOCSDIR}
 	@cd ${WRKSRC} && ${COPYTREE_SHARE} doc ${STAGEDIR}${DOCSDIR}
 
 # see upstream Makefile, test target
 do-test:
 	cd ${WRKSRC} && ${PYTHON_CMD} test.py -p -v
 
 .include <bsd.port.pre.mk>
 
 # if using gcc, force modern GCC due to use of #pragma
 .if ${CHOSEN_COMPILER_TYPE} == gcc
 USE_GCC=	yes
 .endif
 
 .include <bsd.port.post.mk>
diff --git a/devel/py-lxml/pkg-descr b/devel/py-lxml/pkg-descr
index 7022da9aeec2..fffd699a75b2 100644
--- a/devel/py-lxml/pkg-descr
+++ b/devel/py-lxml/pkg-descr
@@ -1,9 +1,10 @@
 lxml is a Python binding for libxml2 and libxslt. Its aim:
 
   * Pythonic API.
   * Documented.
   * Use Python unicode strings in API.
   * Safe (no segfaults).
   * No manual memory management!
 
 WWW: https://lxml.de/
+WWW: https://github.com/lxml/lxml