diff --git a/src/Mod/Part/App/TopoShapeFacePyImp.cpp b/src/Mod/Part/App/TopoShapeFacePyImp.cpp
index b3ce2ede69..c14ee55013 100644
--- a/src/Mod/Part/App/TopoShapeFacePyImp.cpp
+++ b/src/Mod/Part/App/TopoShapeFacePyImp.cpp
@@ -878,6 +878,8 @@ PyObject* TopoShapeFacePy::cutHoles(PyObject *args)
 Py::Object TopoShapeFacePy::getSurface() const
 {
     const TopoDS_Face& f = TopoDS::Face(getTopoShapePtr()->getShape());
+    if (f.IsNull())
+        return Py::Object(Py_None);
     BRepAdaptor_Surface adapt(f);
     Base::PyObjectBase* surface = nullptr;
     switch(adapt.GetType())