What's wrong with the new Tube Map?

TfL put a new London Underground map on their site today to take account of the new Dalston/Highbury & Islington extension on the London Overground. In their excitement they made a mistake which Peter spotted.



See if you can discover what it is before they correct it (Clue - it's in the section I've linked to above) hopefully it's not made it to the new printed versions out tomorrow!

No prizes, just the satisfaction of knowing you're right!

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Update - Just had an email from the press desk of LU who said "Thanks for tip re map mistake, now resolved. Fortunately supplier error didn't make its way on to hard copy poster and pocket maps ..."