ied install not executing npm install in local dependencies folders

i just tried ied in my (complex) project and I noticed that if I have a dependency to a local folder, ied links it which is alright but it doesn't execute npm install inside of it so my app fails. Something like this:

package.json :
dependencies: {
"sc5-styleguide": "file:./my/local/folder"
}

after executing ied install there there should be a new folder ./my/local/folder/node_modules for the application to work - as it happens in npm . Thanks