Abstract: An actuating device (1) for a drain fitting (9) of a flushing cistern comprises a housing (2), which is insertable into an opening (3) of a cistern lid (4), at least one push button (5), which is mounted in said housing (2) so as to be movable along an axis (M) in relation to the housing (2), and a pusher element (6), which is movable towards the drain fitting (9) to trigger flushing by actuating the at least one push button (5). The housing (2) comprises an assembly housing (7) and a push-button housing (8), which is pivotably mounted in the assembly housing (7), the at least one push button (5) being mounted on the push-button housing (8).