A transport attachment (1) for a plate conveyor (100; 200) for conveying material includes a transport plate (50) for conveying the material on a transport surface (10) of the transport plate (50). A connection device (40) has a fastening element (42) for fastening the transport attachment (1) to a driven traction element (150) of the plate conveyor (100; 200). At least one lateral supporting surface (41) is used for laterally supporting the transport attachment (1) in a curve of the plate conveyor (100; 200).