A suppressor for an electronic ballast in a discharge lamp, which is connected between a ballast (A2) and a mains supply, including a supply-voltage rectifier (D2-D5) and a charging capacitor (C6). The suppressor includes at least one energy-storing inductance (L1) and at least two electronic switch elements (Q1, Q2) connected such that, when said switch elements are conducting simultaneously, a current path extends from the positive terminal of the rectifier through said switches and inductance to its negative terminal as well as two diodes (D6, D7) connected such that, when the switches (Q1, Q2) are non-conducting, a current path extends from the negative terminal of the rectifier through said diodes and inductance to its positive terminal.