node js and electron IPC doesn't work on linux

electron-script.js

process.send('I am ok')
process.exit(0);

node-start.js

var electron = require('electron-prebuilt')
var spawn = require('child_process').spawn

var child = spawn(electron, ['electron-script.js'], {
  stdio: ['ipc']
})

child.on('message', function (m) {
  console.log('Yes it works!')
})

On windows I get back message Yes it works. On Ubuntu it prints nothing. I've tried various timeouts and various electron environment variables. Still no luck.