An electrical socket (1) for supporting an integrated circuit chip on a circuit board mainly comprises a non-conductive base (10), a plurality of conductive contacts (20) retained in the base, a slidable cover (30) and an actuator member (40) for moving the slidable cover with respect to the base. The base defines a receiving space (100) for receiving the actuator member and a recessed portion (109) adjacent to the receiving space. The cover forms a projection member (36) which projects from a bottom surface thereof beyond an adjacent side edge thereof to be slidablely received in the recessed portion. The actuator member pushes the projection member to move to its predetermined closed position where the pins of the integrated circuit chip are electrically connected with the conductive contacts, once it is worn after being repeatedly operated or the cover creeps.