It's a data entry thing. Here's how to fix it:
Go to the game page, find the "Edit" button just to the right of a "Share" button. Where this is can vary a bit, depending on your view. If there's a pencil icon on the button, you're looking too far down the page. (BGG: Please just call this one "Corrections".)
After clicking it, you should be on a corrections page. Scroll to the bottom, and put something this in the admin notes:
Change sort index to the "O" -- 5th position.
After a while (it can take days sometimes), an admin will make the change.