The invention relates to a device for fixing a housing (1), in particular of a motor-vehicle battery to a carrier plate (3), permitting the housing (1) to be fixed rapidly without complex manipulation and the aid of a tool to the plate (3). To achieve this, a spring-loaded curved fixing part (10) is inserted under tension between the wall of the housing (1) that is placed on the carrier plate(3) and a retaining edge (4) that projects vertically from the carrier plate (3). The fixing part (10) is preferably curved in a U-shape and comprises a hook-shaped section (27) that grips the base of the housing (1) by means of an opening (7) in the carrier plate (3), in addition to a wedge-shaped surface (12) that co-operates with the retaining edge (4) and engagement elements (17, 26) that secure the housing in position.