An electrical connector assembly includes a male connector, a female connector, and a sleeve. The male connector has a shoulder. The female connector is constructed to receive the male connector and has a flex arm with a nib. The sleeve is constructed to receive the female connector and has an inner surface. When the male connector, the female connector, and the sleeve are telescoped together, the inner surface of the sleeve overlaps the flex arm and forces engagement between the shoulder and the nib to eliminate relative movement between the male and female connectors.