A wire cover (10) is mounted on a rear surface of a housing (30) so that a bundle of wires can be (31) pulled out in a predetermined direction from a rear surface of the housing (30). The wire cove (10) includes a band inserting portion (15) having a curved shape to extend along a part of an outer surface of the bundle of the wires (31) in a circumferential direction and defines a route for a binding member (40) for binding the bundle of the wires (30). A lock fixing portion (47) is provided on an end of the band inserting portion (15) in the circumferential direction and is configured to position a lock (42) of the binding member (40) for locking a band (41) wound around the bundle of wires (31) at a predetermined position, and a reinforcing portion (18) is provided on the lock fixing portion (17).