A method for sheathing a light guide with a flexible layer of sheathing. The method includes providing a light guide and a sheathing strip. The sheathing strip is made of a flexible material. The method also includes joining the light guide and the sheathing strip using a forming aid to form a light guide-sheathing composite. The forming aid places the sheathing strip about the light guide, leaving two excess ends of the sheathing strip extending from the light guide. The method further includes feeding the light guide-sheathing composite to a connection unit and connecting the two excess ends to produce a mounting tab for the light guide-sheathing composite.