A connector includes a housing (10) into which terminal fittings (110) are accommodated and a housing-side lock (26). A wire cover (70) is mounted on the housing (10) to cover wires (200) pulled out from the housing (10). The wire cover (70) includes a cover-side lock (73) at a position to be lockable to the housing-side lock (26) in a mounted state and is held on the housing (10) by being locked to the cover-side lock (73) after the housing-side lock (26) is resiliently deformed. A restricting member (90) is inserted into a deflection space for the housing-side lock (26) to restrict the deflection of the housing-side lock (26) when the cover-side lock (73) and the housing-side lock (26) are in a locked state.