An electrical connector comprising a housing provided on one of opposite end portions thereof with an opening through which a flat circuit device is inserted into the housing, a plurality of conductive contacts arranged on the housing for contacting with connecting terminals on the flat circuit device in the housing, and a shell member mounted on the housing and provided therein with a holding portion operative to hold the flat circuit device in the housing. A releasing portion extends from the shell member toward the outside thereof, and a connecting portion extends from the releasing portion in a direction perpendicular to a conductive contact arrangement and the holding portion extends from the connecting portion, so that a folded-back protrusion is constituted in a body in the shell member with the releasing, connecting and holding portions.