a fastening device for a line , in particular for an electric cable in a motor vehicle , is proposed , the fastening device having a bush which can be locked in a holder , at least partially surrounds the line , is made of elastically deformable material and is fastened releaseably in a cutout of the holder by means of a contour . according to the invention , the surface of a bush , which is injection - moulded from plastic , is of segmented design in order to obtain easier deformability of the bush when fitting it into an associated holder .