A German bank employee accidentally transferred 222,222,222.222 euros ($295 million) from a customer's account when he fell asleep at his computer.
The bank clerk had been attempting to transfer just 62.40 euros ($82.80) for the customer, a pensioner, when he dozed off with a finger on his keyboard's "2" key.
The clerk's boss was fired for failing to notice the mistake, made in April last year, but a labor court in Germany ruled on Tuesday that the dismissal was unfair.
The 48-year-old supervisor, who had worked at the bank since 1986, had not intended to deliberately harm her employer, court documents published online said.
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Rather, the mistake occurred because she had less than three seconds to check each transaction, and was overseeing hundreds every day.
The court judge said the supervisor should have received a caution instead of being fired, and ordered the bank to reinstate her.
Fortunately for the bank and the customer, the error was caught by an internal system and corrected.
-- By CNBC's Katrina Bishop. Follow her on Twitter @KatrinaBishop