Abstract: The stiffness of a buckle holder made of a reinforced belt strap for a seat belt in a motor vehicle by means of which the buckle is supported in an upwardly projecting manner at a distance from its fastening point close to the vehicle floor is achieved by means of an additional, inherently stiff strip which is fixed on the belt strap and which still permits a yielding at least in a transverse direction. The strip is sewn to the belt strap by means of several seams which are situated relatively closely side-by-side, in which case the close course of the sewn seam contributes to the increase of the stiffness of the buckle holder.