An overrun air recirculation valve 1 of an exhaust-gas turbocharger compressor 2, having a valve housing 3 which has an interior 4, having a diaphragm 5 which is guided in the interior 4 and which has an edge-side sealing means 6; and having a connecting means 7 provided on the valve housing 3, wherein the sealing means 6 is in the form of a sealing means which acts in the radial direction R of the diaphragm 5.