diff --git a/science/py-gpaw/Makefile b/science/py-gpaw/Makefile
index 434704bef9aa..e09977d865b7 100644
--- a/science/py-gpaw/Makefile
+++ b/science/py-gpaw/Makefile
@@ -1,33 +1,37 @@
 PORTNAME=	gpaw
 DISTVERSION=	21.6.0
+PORTREVISION=	1
 CATEGORIES=	science python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	DFT and beyond within the projector-augmented wave method in chemistry
 
 LICENSE=	GPLv3+
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 BUILD_DEPENDS=	${PYNUMPY}
 LIB_DEPENDS=	libblas.so:math/blas \
 		libmpich.so:net/mpich \
 		libopenblas.so:math/openblas \
 		libxc.so:science/libxc
 RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}ase>0:science/py-ase@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}matplotlib>0:math/py-matplotlib@${PY_FLAVOR} \
 		${PYNUMPY} \
-		${PYTHON_PKGNAMEPREFIX}scipy>=0:science/py-scipy@${PY_FLAVOR}
+		${PYTHON_PKGNAMEPREFIX}scipy>=0:science/py-scipy@${PY_FLAVOR} \
+		gpaw-setups>0:science/gpaw-setups
 
 USES=		gettext-runtime localbase python:3.7+ shebangfix
 USE_PYTHON=	distutils concurrent autoplist
 SHEBANG_FILES=	tools/*
 
+LDFLAGS=	-lmpi # otherwise: ImportError: /usr/local/lib/python3.8/site-packages/_gpaw.cpython-38.so: Undefined symbol "MPI_Comm_rank"
+
 post-patch:
 	@${REINPLACE_CMD} "s|'/usr/local/|'${LOCALBASE}/|" ${WRKSRC}/gpaw/__init__.py
 
 post-install:
 	@${STRIP_CMD} ${STAGEDIR}${PYTHONPREFIX_SITELIBDIR}/_gpaw*.so
 
 .include <bsd.port.mk>