Output attached filename in [link]

I’ve constructed this loop

[repeater newsletter_attachments]
   [attached field=newsletter_document]
        [link]File Name[/link]
   [/attached]
[/repeater]

The loop works but not the way I want. Inside [link] [/link] I want the name of the file to display. I can’t seem to find a solution to do this. If I put [link] [url] [/link] it outputs page url to file. Not sure what to do at this point.