These days, you’d be hard-pressed to find anything at the store for under a dollar. But on Monday, in honor of National Cheeseburger Day, McDonald’s customers will be able to get a double cheeseburger for just 50 cents, only 45 cents more than what the chain’s original hamburger cost in 1948.

Only customers who use the McDonald’s app will be able to access the deal, and it’s limited to one burger per person. According to the company’s official website, a McDonald’s cheeseburger typically can cost as low as $1 and as high as $2.79. Here’s the short article on CNN.