A round baler has a bale chamber, a movable flap for delivering a bale, a wrapping material dispenser for supplying wrapping material for wrapping a finished bale in the bale chamber, a knife movable from a ready position into a final position to separate a continuous web of the wrapping material between the dispenser and the bale chamber and which, coupled to an actuation of the flap, is returnable to the ready position, separate actuating elements assigned to the knife and to the flap, a common drive energy source, a line connecting actuating elements to the common drive energy source, and an interrupter located on the line, wherein the drive energy source and the actuating element of the knife are located on one side of the interrupter, while the actuating element for the flap is located on another side of the interrupter.