An electrical connector for mating with a plug includes an insulative housing, a number of contacts retained in the insulative housing, a metal shield and at least one metal spring fixed to the metal shield. The metal spring and the metal shield are made of different materials. The metal shield covers the insulative housing to define a receiving cavity formed by a plurality of peripheral walls. One of the peripheral walls defines a slot communicating with the receiving cavity. The metal spring is securely fixed to the peripheral walls and including an engaging arm extending into the receiving cavity through the slot.