gulp stop watching files when gulp-usemin task is launched ?

[maximelebreton]

Hello everybody,

I have a strange problem,
when i launch the usemin task, I have no errors, but gulp stop watching files...
any ideas?

i use this code:

gulp.task('default', function() {
   gulp.src('index.html')
        .pipe(usemin({
            assetsDir: 'public',
            css: [minifyCss(), 'concat'],
            js: [uglify(), 'concat']
        }))
        .pipe(gulp.dest('public'));
});

gulp 3.8.10
gulp-usemin 0.3.11