Dribbble Icon missing on Icon docs page

[xaeroseven]

This looks like it's a typo on the docs page for the dribbble icon. In the code it's "dribble icon" with two b's, I tested in Chrome by changing it to 3 b's in the markup and it works.
http://semantic-ui.com/elements/icon.html#brands

However, I tried creating a fiddle and the dribbble icon works with 2 b's in it, but it does not work with 3 b's
http://jsfiddle.net/s2rj6mq8/

So I'm not sure why the docs page would behave differently than when I'm using Semantic 2.2.1 on jsfiddle. Maybe the icon class names need to support both spellings ("dribble" and "dribbble")?