The invention concerns a motor vehicle wiper 3 including at least one wiper fastened to at least one device 14 for stiffening the wiper and to which is fixed at least a mechanical connector 15 adapted to connect the wiper 3 to an arm, the wiper 3 including at least one element 8 in which there is provided at least one conduit 9 adapted to channel a liquid, and a hydraulic connector 13 in communication at least with the conduit 9 and immediately adjacent the mechanical connector 15, characterized in that the hydraulic connector 13 includes fastening means 16 engaged at least with the stiffening device 14.