A device for the adjustable fixing of a headlamp with a housing in a body opening of a motor vehicle, with at least one lower fixing point arranged in a lower region, in the vertical direction, of the housing and with at least one upper fixing point arranged in an upper region, in the vertical direction, of the housing, wherein a tab of the housing is connected to a support part at the upper or lower fixing point via a holder which runs transversely to the beam direction of the headlamp and can be displaced along a first adjustment direction (Y), wherein the holder is mounted such that it can be displaced with respect to the support part in the first adjustment direction (Y) via a guide, and wherein the holder is assigned a blocking device for fixing the holder in the first adjustment direction (Y).