npm install fails on OS X

[bral]

> chromium@3.2171.3007 install /Users/brannonlucas/Projects/Tint/test-hybrid/node_modules/chromium
> node install.js

internal/child_process.js:733
      default: throw new TypeError('Incorrect value of stdio option: ' + stdio);
               ^

TypeError: Incorrect value of stdio option: inerit
    at _validateStdio (internal/child_process.js:733:22)
    at ChildProcess.spawn (internal/child_process.js:263:11)
    at Object.exports.spawn (child_process.js:367:9)
    at Object.<anonymous> (/Users/brannonlucas/Projects/Tint/test-hybrid/node_modules/chromium/install.js:4:27)
    at Module._compile (module.js:413:34)
    at Object.Module._extensions..js (module.js:422:10)
    at Module.load (module.js:357:32)
    at Function.Module._load (module.js:314:12)
    at Function.Module.runMain (module.js:447:10)
    at startup (node.js:146:18)