What do you get when you make it harder to win the jackpot? Lose ticket sales, of course.

That was the results that the UK National Lottery got a year after it made some controversial changes to the Lotto—namely, reducing the odds of winning the jackpot from one in 14 million to one in 45 million.

Camelot Group, which operates the National Lottery, revealed this week that total ticket sales for UK National Lottery’s draw-based games—chiefly Lotto and Euromillions—dropped by £6.2 million to £4.6 billion last year.

Camelot bosses chalked up the ticket sale loss to stiff competition from The Health Lottery and the People’s Postcode Lottery, which, according to Daily Mail, has been spending millions of pounds in promotion. Camelot said it runs the most cost-efficient major lottery in Europe, spending only about 4 percent of total revenue on operating costs.