An apparatus is described for fastening a finishing strip (2) with a support (1) forming a wall leg (4), which support comprises at least one upwardly protruding holding web (8) engaging in a downwardly open groove (9) of the finishing strip (2) for clamping accommodation of the finishing strip. In order to enable securing the finishing strip (2) in the mounting position it is proposed that the support (1) comprises at least one resilient securing tongue (10) with a leg extending approximately parallel to the holding web (8), which securing tongue overlaps a securing stop (12) of the finishing strip (2) which extends transversally to the holding web (8).