The present disclosure relates to a method for operating a round baler. The method comprises providing a nonstop baler type machine; feeding of crop into a prechamber and a main bale forming chamber; and providing, by a binding unit, a binding material to the main bale forming chamber for wrapping a bale formed in the main bale forming chamber, comprising, in a first mode of operation, providing a stretching apparatus in contact with the binding material, thereby, applying a compressive force to the binding material for stretching the binding material; and in a second mode of operation, providing the stretching apparatus free of contact with the binding material. Furthermore, a round baler is disclosed.