Folder out of dir

[furyscript]

I've load font-awesome in vendor folder with bower.

-src
-vendor
-assets
-build

I build my project into build folder.
The problem is that the vendor file isn't touch so by default when bower download font-awesome, the path of it's font is "../fonts" and I need to change it manually with "/assets" (I build the font-awesome font into assets)
My question is: How can I download correctly font-awesome??
If bower not work I'm forced to move font-awesome folder into assets so remove the bower package manager for this.. But I prefer not..