Optimized RequireJS module file loads, but does nothing - requirejs

Question

I'm learning to use amd-optimize with Gulp and I have a problem where an optimised AMD file loads but doesn't execute. I can see it in the dev tools networks tab, but it does nothing nor give errors.
I made a test case with single module called pinkyfyer, it changes the body bg to pink. If I load it normally, it works, but after optimisation it does nothing.
My dir structure:
dist
└── js
└── global.js // The optimized file
src
├── css
│   └── style.css
├── index.html // Main index file
└── js
   ├── config.js // RequireJS netry point
   └── modules
   └── pinkifyer.js // Test module
Init RequireJS in index.html:
<script data-main="js/config" src="lib/require.js"></script>
The entry point, config.js:
require.config({
urlArgs: 'bust=' + (new Date()).getTime(),
baseUrl: 'js',
// If I load the app straight without optimisation,
// the pinkyfyer works
// deps: ['modules/app'],
// But the optimised file does nada
deps: ['../dist/js/global.js']
});
And the simply app.js:
define(function(require) {
require('./pinkifyer');
});
The scripts Gulp task with amd-optimize:
var gulp = require('gulp'),
amdOptimize = require('amd-optimize'),
concat = require('gulp-concat');
gulp.task('scripts', function() {
gulp.src(['src/js/**/*.js'], { base: 'src/js' })
// Traces all modules and outputs them in the correct order
.pipe(amdOptimize('modules/app', {
baseURL: 'src/js',
configFile: 'src/js/config.js',
findNestedDependencies: true
}))
.pipe(concat('global.js'))
.pipe(gulp.dest('dist/js'))
});
And finally here's the global.js that the amd-optimize outputs:
define('modules/pinkifyer', [], function () {
document.body.style.backgroundColor = 'pink';
});
define('modules/app', [
'require',
'exports',
'module',
'modules/pinkifyer'
], function (require) {
require('./pinkifyer');
});
I tried to change the module names in the global.js, but it didn't help.
I'm missing something very elementary here. Thanks advance!
Edit
I tried r.js and it yielded the following result that works if I load it straight in the index.html file <script data-main="dist/js/global" src="lib/require.js"></script>:
define('modules/pinkifyer',[],function() {
document.body.style.backgroundColor = 'pink';
});
define('modules/app',['require','./pinkifyer'],function(require) {
require('./pinkifyer');
});
require.config({
urlArgs: 'bust=' + (new Date()).getTime(),
baseUrl: 'js',
deps: ['modules/app']
// deps: ['../dist/js/global.js']
});
define("config", function(){});
It's something I don't get in the amd-optimize plugin.