A standard attachment for a standard earpiece insertable into an ear canal in a direction of insertion, by which, compared to customary attachments, an improved adaptation of the corresponding standard earpiece to an ear canal is achieved, and therefore improved audio perception, and also improved wearing comfort of the respective hearing aid is ensured. The standard attachment contains a headpiece at one end and, adjoining the latter, a wing portion. The outer contour of the headpiece is configured to allow the headpiece to bear on the wall of the ear canal at several points or on several lines.