An electrical connector includes a terminal seat loaded with a plurality of terminals and a shielding plate. The terminal seat includes a base and a mating tongue extending from the base, the mating tongue defines two opposite mating surfaces, a confronting surface and two opposite sides connecting with the mating surfaces and the confronting surface. The terminals include contacting sections exposing upon the mating surfaces and leg sections out of the base. The shielding plate includes a main sheet disposed between the mating surfaces and two thickening sections, the two thickening sections enclose the two opposite sides of the mating tongue and each provides a side latch at an outer side face thereof. Each thickness defines two opposite first surfaces connecting with the outer side face thereof, the first surfaces complete the mating surfaces of the mating tongue.