TypeError: Cannot call method 'emit' of undefined

I'm testing some code of mine that seems to have an error in it. It works fine in a browser, but it errors in node-qunit-phantomjs. When the error is thrown though, my error results in another error within node-qunit-phantomjs, like so:

```
root@local-dev:/path/to/tests# node-qunit-phantomjs mytest.js.html
Testing /path/to/tests/mytest.js.html

/usr/lib/node_modules/node-qunit-phantomjs/index.js:67
this.emit('error', new Error(e));
^
TypeError: Cannot call method 'emit' of undefined
at /usr/lib/node_modules/node-qunit-phantomjs/index.js:67:22
at ChildProcess.exithandler (child_process.js:646:7)
at ChildProcess.emit (events.js:117:20)
at maybeClose (child_process.js:756:16)
at Process.ChildProcess._handle.onexit (child_process.js:823:5)
```

Looking at the source, the "this" keyword seems to not be pointing at what it thinks it is. I'm going to proceed trying to debug my own code for what is throwing the original error, but do you have any clues as to why the "this" keyword is not in the correct scope here, or a possible fix?