The invention relates to a device for mounting a glass or glass-ceramic vessel-style washbasin (1). The inventive device is characterised in that it essentially takes the form of an adapter (3) which is disposed between the lower face of the glass or glass-ceramic vessel-style washbasin and a support (2) at the drain hole (1′), said adapter (3) being connected to the lower face of the washbasin (1) with a layer of glue (6) or an adhesive and fixed to the support (2) by means of a flow element (4). The invention is particularly suitable for household equipment, in particular vessel-style washbasins and vessel-style washbasins that are made from glass or glass-ceramic.