エラー出るっぽいので確認お願いします＞＜

```
$ vows module/room/room.spec.js --spec

/Users/takc923/Workspace/js/future_tig/module/room/room.spec.js:2
describe('room', function () {
^
ReferenceError: describe is not defined
    at Object.<anonymous> (/Users/takc923/Workspace/js/future_tig/module/room/room.spec.js:2:1)
    at Module._compile (module.js:456:26)
    at Object.Module._extensions..js (module.js:474:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)
    at Module.require (module.js:364:17)
    at require (module.js:380:17)
    at /usr/local/share/npm/lib/node_modules/vows/bin/vows:567:19
    at Array.reduce (native)
    at importSuites (/usr/local/share/npm/lib/node_modules/vows/bin/vows:560:18)
```