a holding element , in particular for a hydraulic unit of a slip - controllable block vehicle braking system , includes at least one side wall which , at one end , has a receptacle for holding the hydraulic unit . the holding element further includes at least one fastening element for fastening the holding element to a support part , wherein the holding element is at least substantially designed as a single piece . the holding element is manufactured at least substantially from plastic and the side wall is provided with at least one stiffening rib which runs in a radial or radiated manner with respect to the receptacle .