A cable drive device of an adjustment system of a motor vehicle has an actuating drive and a cable drive housing in which a cable drum that is rotatably coupled to the actuating drive and has a traction cable wound thereon is received. The cable drum, for receiving a cable nipple fastened to the traction cable, on at least one end side has a nipple chamber having a chamber opening and mutually spaced apart chamber walls. The nipple chamber on at least one of the chamber walls has a delimiting element. The cable nipple when introduced into the nipple chamber by way of the chamber opening engaging below the delimiting element.