A driver for a vehicle window regulator, having a pane holder for fastening to a window pane, and a rail slider with a guide region and a sliding insert lying therein. The pane holder has an approximately cylindrical connecting section which is inserted along an axial direction into a holder section of the rail slider and is surrounded by said holder section at least in sections along a circumferential direction, and the connecting section has a receptacle and the holder section has a passage opening, which receptacle and passage opening are arranged aligned with each other along a radial direction, and a joining pin is inserted into the passage opening and the receptacle.