A window surround molding is secured on a vehicle door flange with a retainer clip. The molding extends in a longitudinal direction and has a cross-section including first and second channels separated by a Dutch bend. The flange is disposed in the second channel on one side of the Dutch bend. The clip is disposed in the first channel on an opposite side of the Dutch bend. An arm extends in the longitudinal direction away from first and second ends of the clip and engages the molding to secure the clip within the first channel. The clip also includes a lower edge that engages the Dutch bend. A flex tab protrudes from a front face of the clip and engages the flange to secure the molding on the flange and to prevent rotation of the molding relative to the flange.