Abstract: A window lock for a window that has an outer sash and an inner sash in a wall is provided and consists of an upper mounting bracket attached to interior surface on top rail of the outer sash of the window and a lower mounting bracket positioned onto bottom meeting rail of the outer sash of the window. The upper mounting bracket has a portion extending downwardly from the top rail to be received and adjustably secured within a portion of the lower mounting bracket extending outwardly thus allowing the inner and outer sashes of the window limited travel for the top meeting rail of the inner sash will contact the outwardly extending portion of lower mounting bracket.