A connector includes: a terminal; a housing; a rear holder; and a rubber plug. A terminal receiving chamber of the housing is provided with: a first receiving portion receiving a wire connecting portion, an electric wire connected to the wire connecting portion, and a rubber plug; a second receiving portion; and a step wall interposed between the first and second receiving portions and allowing a flange portion formed on the wire connecting portion to abut on the step wall. The rubber plug is composed of a ring-shaped packing attached to the electric wire and keeping a space between an outer peripheral wall of the electric wire and an inner wall of the first receiving portion watertight, and a resin member. The resin member is provided with a buried portion buried in the packing, and a cylinder portion extended from the buried portion and interposed between the flange and the packing.