This invention relates to a headrail and mounting bracket for retractable venetian window blinds. The bracket has a top plate and a rear plate extending downwardly from the top plate. A hook near one end of the top plate engages with a lip on a front wall of the headrail. Means are provided to ensure that the hook is securely and tightly engaged with the lip. A latch associated with the rear plate engages with the rear edge of the bottom wall of the headrail to secure the headrail in the bracket. An end plate may also be provided on the bracket.