Identity not set without resource

I set identity with:

    def __init__(self, jid, password):
        super().__init__(jid, password)
        # ...
        self.register_plugin('xep_0030')    # Service Discovery
        # ...
        self['xep_0030'].add_identity(
                        jid=self.boundjid,
                        category='client', itype='bot',
                        name="somevalue"
                        )

When i login with JID + resource, all works as expected. But when i login without resource, the default one is returned (without name).