The invention concerns a wiper blade for a vehicle, comprising at least one wiper strip intended to come to bear on a glazed surface and at least one bending member (1) housed in a support, the wiper strip being held by the support, the bending member (1) being configured to generate curvature in the wiper blade, the bending member (1) being arranged in the form of a longitudinally extending strip, the strip comprising, seen in cross-section, an intermediate portion (2) arranged between two lateral portions (3a, 3b) of the strip, characterized in that a first thickness (12) of the intermediate portion (2) is less than a second thickness (13) of at least one of the lateral portions (3a, 3b).