Boris Johnson was on the campaign trail in west London when he was greeted with this sign.
Staff at Signcraft in West Drayton had quickly printed off a poster but admitted: "We spelled his name wrong."
Johnson didn't seem to mind too much.
He said: "I think it's better like that. I think I might change it. It's less confusing; it's a proper English spelling really."
The action was recorded by Press Association political reporter Richard Wheeler.