An adjusting device for adjusting a flap at an wing of an aircraft includes at least one flap drive for operating the flap and a plurality of drive stations comprising drive struts structured and arranged to movably connect the flap to the wing. The plurality of drive stations includes at least two first drive stations that guide the flap in a defined position in a wing chord direction. The plurality of drive stations includes at least one second drive station at which the flap is moveable in the wing chord direction. The at least one second drive station includes at least one compensation element structured and arranged to compensate constraining forces occurring in the plurality of drive stations due to relative movements between the flap and the wing in the wing chord direction.