You can get a McDonald’s egg McMuffin for $1 – but you’ll have to act fast. On Sunday, March 2, McDonald’s is offering customers a classic egg McMuffin or sausage McMuffin with egg for $1 when they order in the mobile app, according to the fast food chain. No additional purchase is required, but you must be a rewards member.

McDonald’s is offering a special deal on one of its most iconic breakfast items. To mark the 50th anniversary of the Egg McMuffin, customers can purchase an Egg McMuffin or a Sausage McMuffin with Egg for just $1—exclusively through the McDonald’s app.

Of all the fast food breakfast sandwiches out there, McDonald’s Egg McMuffin is one that has truly stood the test of time. In celebration of 50 years of the McDonald’s breakfast menu icon, the chain is offering $1 Egg McMuffins – for a limited time only.