A device for charging a filling material (6) with respect to pieces of dough (1) transferred on a transfer conveyor (2) comprising detectors (3) mounted on the transfer conveyor, the detectors being adapted to detect transverse shifts of the pieces of dough on the transfer conveyor and to generate signals representative of the amounts of the shifts; a filling-charging mechanism (4) disposed downstream of the detectors, the filling-charging mechanism having discharging nozzles (48) mounted movably in the transverse direction; and a control device (7) for receiving from the detectors the signals representative of the amounts of the shifts and controlling the discharging nozzles to move transversely amounts equal to the respective amounts of the shift.