The invention relates to a wiper blade (10) for cleaning vehicle windows, with a wiper blade body (22) connected with a wiper blade adapter (11), wherein the wiper blade adapter (11) consists of an adapter element (12) on the wiper arm side and of an adapter element (13) on the wiper blade side, which are connected with one another and are arranged pivotably with respect to one another in an axis (14), and with at least one distributor element (35) arranged pivotably in the axis (14) for the hydraulic and/or electrical supply of the wiper blade body (22), wherein the distributor element (35) is arranged substantially between two side walls (29, 30) of the adapter element (13) on the wiper blade side, that an aperture (31, 32) is formed respectively on the two side walls (29, 30) of the adapter element (13) on the wiper blade side aligned to the axis (14), and that the distributor element (35) has respectively a peg-like bearing extension (55, 56) on the side facing the side walls (29, 30).