LabManagement: How to import a new machine type?

Hi!

I've defined additional types in the lab management (besides Machine, Physical machine,..)
One new Type is "Gear Box":


Now I want to import lab resources with the new type.
The Excel Importer creats following XML:



When I try to import it, the resource is created, but the type is Machine.
Within the Gui I can change the type to Gear Box.

What can I do, that the type is created automatically during import?

   thanks, jörg

(tested with 6.0.3)