When a terminal unit (U) is mounted into an accommodation recess (8 of a connector housing (1), a rear part thereof projects from the connector housing (1). A displacement restricting member (2) including positioning portions (16) is mounted on the projecting part. Since the positioning portions (16) are fit into receiving portions (15) of the connector housing (1) while being position in a direction intersecting with an inserting direction, a situation where the projecting part of the terminal holding member (H) is deformed is avoided even if a second wire (25) is swung.