diff --git a/science/siconos/Makefile b/science/siconos/Makefile
index 93c6ec53b009..86658b453d59 100644
--- a/science/siconos/Makefile
+++ b/science/siconos/Makefile
@@ -1,45 +1,47 @@
 PORTNAME=	siconos
 DISTVERSION=	4.4.0.rc4
 CATEGORIES=	science
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Simulation framework for nonsmooth dynamical systems
 
 LICENSE=	APACHE20
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 BROKEN_i386=		non-constant-expression cannot be narrowed from type 'unsigned int' to 'npy_intp', see https://github.com/siconos/siconos/issues/416
 BROKEN_FreeBSD_11=	error: use of undeclared identifier 'RTLD_DEEPBIND'
 
 BUILD_DEPENDS=	boost-libs>0:devel/boost-libs \
 		${PYTHON_PKGNAMEPREFIX}packaging>0:devel/py-packaging@${PY_FLAVOR} \
 		help2man:misc/help2man
 LIB_DEPENDS=	libcxsparse.so:math/suitesparse-cxsparse \
 		libgmp.so:math/gmp \
 		libldl.so:math/suitesparse-ldl \
 		libopenblas.so:math/openblas
+TEST_DEPENDS=	cppunit>0:devel/cppunit
 
-USES=		cmake compiler:c++17-lang fortran pkgconfig
+USES=		cmake:testing compiler:c++17-lang fortran pkgconfig
 USE_GITHUB=	yes
 USE_LDCONFIG=	yes
 
 CMAKE_ARGS=	-DFREEBSD_PYTHON_VER=${PYTHON_VER}
+CMAKE_TESTING_ON=	WITH_TESTING # tests are broken, see https://github.com/siconos/siconos/issues/415
 
 CFLAGS+=	-DCLOCKTIME -DCLOCKS_PER_SEC=128 # workaround for 'Undefined symbol "ftime"', see https://github.com/siconos/siconos/issues/411
 
 BINARY_ALIAS=	python3=${PYTHON_CMD}
 
 OPTIONS_DEFINE=		PYTHON
 OPTIONS_DEFAULT=	PYTHON
 OPTIONS_SUB=		yes
 
 PYTHON_CMAKE_BOOL=	WITH_PYTHON_WRAPPER
 PYTHON_USES=		python
 PYTHON_USES_OFF=	python:build
 PYTHON_PY_DEPENDS=	${PYNUMPY} \
 			${PYTHON_PKGNAMEPREFIX}scipy>0:science/py-scipy@${PY_FLAVOR}
 PYTHON_BUILD_DEPENDS=	${PYTHON_PY_DEPENDS} \
 			swig:devel/swig
 PYTHON_RUN_DEPENDS=	${PYTHON_PY_DEPENDS}
 
 .include <bsd.port.mk>