keep icon from generalized stereotype

[p_kn]

Hey. I followed this tutorial:
https://docs.nomagic.com/display/MD190S ... tomization
and successfully made a new customized stereotype from the stereotype extendedRequirement.
My problem ist, that my new stereotype has the icon of a metaclass, but without the M in it. I want it to inherit the icon of the extendedRequirement. How can I achieve that?

Thanks!