[TYPO3-mvc] SQL-Query without tablename?!?!

[Stefan Frömken]

Hello

I got following SQL-Query:

SELECT .* FROM tx_dam_mm_ref LEFT JOIN ON tx_dam_mm_ref.uid_local = .uid 
WHERE (tx_dam_mm_ref.uid_foreign = '27761' AND tx_dam_mm_ref.ident = 
'tx_damnews_dam_images') ORDER BY tx_dam_mm_ref.sorting_foreign ASC

I have a repository for Dam
I have the injectFunction in my controller
I have made a Dam-model with the fields I need
I have mapped my DamModelname to tx_dam

As you can see I don't need a repository nor a model for MM-Table. 
Extbase has found it on its own.

Any idea what I have forgotten?

Stefan