problems with socket.io-client #15

Hey,
once I start using bundle-collapser, it seems as if var io = require('socket.io-client') doesn't get resolved correctly. In my case it gets assigned 530 by bundle-collapser, but when running the app it throws the error Uncaught TypeError: io is not a function. Maybe because of the . in the module name?
It's unfortunate, because bundle-collapser saves me ~40kB :)

Thank you!

edit: browserify 11.0.0, bundle-collapser 1.2.1