Continue until the original stitch has been overlapped by at least 1/2 inch (13 mm) and finish with the needle on the backside.

Without pulling the needle all the way through, begin making a small stitch on the backside of the fabric.

Wrap the working thread around the needle point three times.

Pull the needle through the fabric and loops of thread. The wrapped thread will create a knot that lies flush with the fabric.

For a more detailed explanation see Knot Thread to the Fabric (2 Ways).