diff --git a/science/arbor/Makefile b/science/arbor/Makefile
index e2b4f185c4e7..d5889645332b 100644
--- a/science/arbor/Makefile
+++ b/science/arbor/Makefile
@@ -1,39 +1,41 @@
 PORTNAME=	arbor
 DISTVERSIONPREFIX=	v
 DISTVERSION=	0.8
 PORTREVISION=	1
 CATEGORIES=	science
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Multi-compartment neural network simulation library
 WWW=		https://arbor-sim.org/
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
+BROKEN_armv7=	compilation fails: unknown type name 'float64x2_t'
+
 BUILD_DEPENDS=	bash:shells/bash \
 		libfmt>0:devel/libfmt \
 		nlohmann-json>0:devel/nlohmann-json \
 		random123>0:devel/random123 \
 		${PYTHON_PKGNAMEPREFIX}svgwrite>0:graphics/py-svgwrite@${PY_FLAVOR}
 RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}svgwrite>0:graphics/py-svgwrite@${PY_FLAVOR}
 
 USES=		cmake compiler:c++17-lang python shebangfix
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	arbor-sim
 
 SHEBANG_FILES=	scripts/arbor-build-catalogue
 
 CMAKE_ON=	BUILD_SHARED_LIBS
 CMAKE_ARGS=	-DPython3_EXECUTABLE=${PYTHON_CMD}
 
 OPTIONS_DEFINE=		NATIVE
 
 NATIVE_CMAKE_ON=	-DARB_ARCH=native
 NATIVE_CMAKE_OFF=	-DARB_ARCH=none
 
 post-install:
 	@${RMDIR} ${STAGEDIR}${DOCSDIR}
 
 .include <bsd.port.mk>