Abstract: A windshield wiper blade assembly having a primary yoke on which is mounted a spoiler which is formed with a curved front side and a generally triangular rear side, the spoiler having one end provided with a first bracket and another end provided with a second bracket, a bottom of the first bracket having two clamping members formed with two opposite semi-cylindrical recesses configured to fit into a first elongated opening of the primary yoke, the second bracket having two curved arms at two ends thereof configured to fit into a second elongated opening of the primary yoke, whereby the spoiler will give a downward pressure to the windshield wiper to prevent the windshield wiper from lifting from the windshield when the driving speed is high.