diff --git a/pythonbindings/src/gpu/submodules/actuator_farm.cpp b/pythonbindings/src/gpu/submodules/actuator_farm.cpp
index a930616db3e0d0713bdf57157387d75d171603de..3718f42b586b9f8ddcbe2efb22570c2554dbdc67 100644
--- a/pythonbindings/src/gpu/submodules/actuator_farm.cpp
+++ b/pythonbindings/src/gpu/submodules/actuator_farm.cpp
@@ -71,7 +71,7 @@ namespace actuator_farm
         .def_property_readonly("number_of_turbines", &ActuatorFarm::getNumberOfTurbines)
         .def_property_readonly("number_of_nodes_per_blade", &ActuatorFarm::getNumberOfNodesPerBlade)
         .def_property_readonly("number_of_blades_per_turbine", &ActuatorFarm::getNumberOfBladesPerTurbine)
-        .def_property_readonly("number_of_nodes", &ActuatorFarm::getNumberOfNodes)
+        .def_property_readonly("number_of_grid_nodes", &ActuatorFarm::getNumberOfGridNodes)
         .def_property_readonly("number_of_indices", &ActuatorFarm::getNumberOfIndices)
         .def_property_readonly("density", &ActuatorFarm::getDensity)
         .def_property_readonly("delta_t", &ActuatorFarm::getDeltaT)
diff --git a/pythonbindings/src/gpu/submodules/grid_generator.cpp b/pythonbindings/src/gpu/submodules/grid_generator.cpp
index 59d0bd5708b11f246664d1e8c7ee198f986d80c1..393b791810360b51758b0467466e0b53db9d7bc4 100644
--- a/pythonbindings/src/gpu/submodules/grid_generator.cpp
+++ b/pythonbindings/src/gpu/submodules/grid_generator.cpp
@@ -97,10 +97,10 @@ namespace grid_generator
         py::class_<MultipleGridBuilder, LevelGridBuilder, std::shared_ptr<MultipleGridBuilder>>(gridGeneratorModule, "MultipleGridBuilder")
         .def_static("make_shared", &MultipleGridBuilder::makeShared, py::return_value_policy::reference, py::arg("grid_factory"))
         .def("add_coarse_grid", &MultipleGridBuilder::addCoarseGrid, py::arg("start_x"), py::arg("start_y"), py::arg("start_z"), py::arg("end_x"), py::arg("end_y"), py::arg("end_z"), py::arg("delta"))
-        .def("add_grid", py::overload_cast<Object*>(&MultipleGridBuilder::addGrid), py::arg("grid_shape"))
-        .def("add_grid", py::overload_cast<Object*, uint>(&MultipleGridBuilder::addGrid), py::arg("grid_shape"), py::arg("level_fine"))
-        .def("add_geometry", py::overload_cast<Object*>(&MultipleGridBuilder::addGeometry), py::arg("solid_object"))
-        .def("add_geometry", py::overload_cast<Object*, uint>(&MultipleGridBuilder::addGeometry), py::arg("solid_object"), py::arg("level"))
+        .def("add_grid", py::overload_cast<SPtr<Object>>(&MultipleGridBuilder::addGrid), py::arg("grid_shape"))
+        .def("add_grid", py::overload_cast<SPtr<Object>, uint>(&MultipleGridBuilder::addGrid), py::arg("grid_shape"), py::arg("level_fine"))
+        .def("add_geometry", py::overload_cast<SPtr<Object>>(&MultipleGridBuilder::addGeometry), py::arg("solid_object"))
+        .def("add_geometry", py::overload_cast<SPtr<Object>, uint>(&MultipleGridBuilder::addGeometry), py::arg("solid_object"), py::arg("level"))
         .def("get_number_of_levels", &MultipleGridBuilder::getNumberOfLevels)
         .def("build_grids", &MultipleGridBuilder::buildGrids, py::arg("enable_thin_walls"))
         .def("set_subdomain_box", &MultipleGridBuilder::setSubDomainBox, py::arg("bounding_box"))