diff --git a/src/Mod/Part/App/Geom2d/Curve2dPyImp.cpp b/src/Mod/Part/App/Geom2d/Curve2dPyImp.cpp
index 2a7911373..67a57a4b9 100644
--- a/src/Mod/Part/App/Geom2d/Curve2dPyImp.cpp
+++ b/src/Mod/Part/App/Geom2d/Curve2dPyImp.cpp
@@ -105,7 +105,9 @@ PyObject* Curve2dPy::reverse(PyObject * args)
     return 0;
 }
 
+namespace Part {
 extern Py::Object shape2pyshape(const TopoDS_Shape &shape);
+}
 
 PyObject* Curve2dPy::toShape(PyObject *args)
 {
diff --git a/src/Mod/Part/App/TopoShapePyImp.cpp b/src/Mod/Part/App/TopoShapePyImp.cpp
index dcc1cd385..c67c84011 100644
--- a/src/Mod/Part/App/TopoShapePyImp.cpp
+++ b/src/Mod/Part/App/TopoShapePyImp.cpp
@@ -157,8 +157,9 @@ int TopoShapePy::PyInit(PyObject* args, PyObject*)
     return 0;
 }
 
+namespace Part {
 //common code.. maybe put somewhere else?
-Py::Object shape2pyshape(const TopoDS_Shape &shape)
+Py::Object PartExport shape2pyshape(const TopoDS_Shape &shape)
 {
     PyObject* ret = 0;
     if (!shape.IsNull()) {
@@ -204,6 +205,7 @@ Py::Object shape2pyshape(const TopoDS_Shape &shape)
 
     return Py::asObject(ret);
 }
+} //namespace Part
 
 PyObject* TopoShapePy::copy(PyObject *args)
 {