A device for fixing a housing (1), especially a housing pertaining to a motor vehicle battery, to a carrier plate (3). The device consists of a fixing bracket (4) and a separate fixing element (9). The fixing bracket (4) is fixed or moulded onto a edge of the carrier plate (3) projecting past the housing (1), and comprises a vertical limb (5) which extends at a distance from the housing wall, parallel to the same. The separate fixing element (9) is inserted into the intermediate region between the housing wall and the vertical limb (5) of the fixing bracket (4), and is wedged fast therein. According to the invention, the housing (1) can be fixed to the carrier plate (3) with few, simple movements and without using a tool. All parts of the fixing device can be reused if the housing (1) needs to be replaced. No scrap or other waste elements are accumulated, thus also solving the recycling problem.