Wiper blade, in particular for a motor vehicle

A wiper blade (10) comprising a wiper strip (16) and a fastening element (18) for fastening the wiper strip (16) on a wiper arm (12), characterized in that the fastening element (18) has a body (36) and first and second walls (30), each being configured to be translated relative to the body (36) between a first position and a second position, wherein the orientation of the walls (30) in the first position is parallel to the orientation of the walls (30) in the second position, wherein the body (36) and the walls (30) are integrally formed as a single piece component, wherein the first wall (30) and the second wall (30) are opposite walls (30) which are configured to be displaced in parallel relative to one another, and can each be displaced between two parallel end positions.