The present invention relates to a door opener system having a door opener, which comprises a pivot latch pivotable into the door opener having a stop, having a striker plate, and having a lock latch guide running diagonally inward into the door opener for guiding the lock latch, an adapter part being provided, on which the lock latch guide is implemented and which is situated between the door opener and the striker plate. In order to obtain a flexibly usable and simultaneously reliably functioning door opener system, the lock latch guide is implemented as a slide face, which runs continuously over the stop width and is situated on the door side next to the stop of the pivot latch and adjoining thereto.