Shoppers were horrified to see a sticker on a book about Madeleine McCann which read, "when it's gone it's gone".
The label advertised a 60 per cent reduction on a new study of Madeleine's disappearance in discount store The Works, where it was spotted by a Twitter user, according to Daily Mail.
She posted an image of the blunder with the caption, "Of all the price sticker choices..."
Replying to the tweet, one user wrote: "Shame on you @TheWorksStores."
Another person hit out at people who were making light of the mistake, with one writing: "Do people not realise this is someones child?"