The invention relates to a holder for a cover (5) of an air bag arranged behind an instrument panel (1) of a vehicle. The cover (5) is held in a hinged manner by flexible strips (8) on one of its longitudinal sides (6). Retaining parts (13) are provided along the other longitudinal side (7), which retaining parts, by means of a predetermined breaking point on a connecting web (20), permanently ensure that the cover (5) fits exactly in the opening (2) of the instrument panel (1). <IMAGE>