An electrical connector (1) comprises an insulative housing (10), a plurality of terminals (20) received in the housing, and an insulative protector (30). The insulative housing comprises a mating portion (11), a plurality of terminal receiving passageways (13) defined in the mating portion, a pair of sidewalls (14) extending rearwardly from the mating portion and a pair of platforms (16) respectively formed outside of the sidewalls. The protector (30) comprises a top ledge (31) having a pair of tongues (311) formed on opposite ends thereof, and a base (32) having a pair of opposite side latches (321) at the bottom thereof. Each latch has a hook (322) formed at the free end thereof. The tongues of the top ledge and the latches of the base engage the sidewalls of the insulative housing to assemble the insulative protector to the insulative housing.