An electrical connector includes a terminal module including an insulative housing and a number of conductive terminals affixed to the insulative housing, and a shielding shell having a number of lateral walls and enclosing the insulative housing for forming a receiving room. The insulative housing has a base portion and a tongue portion extending forwardly from the base portion. The base portion has a mounting portion at a rear end thereof. Each conductive terminal has a contacting portion exposed to the tongue portion, a fixed portion affixed to the base portion and a soldering portion extending rearward from the mounting portion. The shielding shell includes a pair of supporting legs extending upwardly and resisting against the mounting portion. The supporting legs resisting against the mounting portion makes the base portion resist against gravity leading to a positive positioning of the tongue portion without upturning.