One Mississippi Lottery player discovered that missing one crucial number in Wednesday’s Powerball meant the difference between walking away with $50,000 and joining the ranks of billionaires.

According to the Mississippi Lottery website, the lucky (or unlucky, depending on how you look at it) player won $50,000 by matching four of the five white balls and matching the red Powerball.

Missing that one ball amounted to winning $1,089,950,000 less than what was up for grabs.

No ticket matched Wednesday night’s winning Powerball numbers, and the prize has now ballooned to $1.23 billion for the next drawing.

The winning numbers on Wednesday night were: 11, 38, 41, 62, 65 and red Powerball 15. The power play was 3.

The next drawing is on Saturday night. The cash value is $595.1 million

If a player wins, they can choose between a lump-sum, pre-tax payment of $527.3 million or annual payouts of $1.09 billion, also pre-tax—starting with one immediate payment followed by 29 annual payments that increase by 5% each year.

The odds of winning the jackpot are 1 in 292.2 million, according to Powerball.