The present invention provides a method for preventing or removing a plugging of a feeder duct of a baler (1). The method according to the invention comprises increasing the distance between the top wall (35) and the bottom wall (37) of the feeder duct (23) in at least a part of the feeder duct (23), while leaving the upper boundary provided by the top wall (35) of the feeder duct and the lower boundary provided by the bottom wall (37) of the feeder duct intact, and causing the feeder means (25) to operate in the feeder duct (23) with the increased distance between the top wall (35) and the bottom wall (37).
