A connector 1 includes: a connector housing 2; a case 3; and a cover 4. The connector housing 2 receives terminals. The case 3 is coupled to the connector housing 2, and receives ends of electric wires 7 connected to the terminals in the connector housing 2. The cover 4 includes a pair of cover bodies 41, 42, a locking arm, and a receiving member 6. The pair of cover bodies 41, 42 are attached to an outside of the case 3, and attached to each other to cover an outer wall 3b of the case 3. The locking arm is mounted on a one cover body 41. The receiving member is mounted on the other cover body 42 and engaged with the locking arm 41.