The chain says it will offer a free original glazed doughnut to anyone who shows their vaccination card for the rest of 2021, starting today. And the offer is not a one-time deal.

Customers can come in any day, at any time, to claim the free treat. No additional purchase is necessary. Krispy Kreme says it also plans to randomly deliver doughnuts to health care workers and volunteers at vaccination centers in the coming weeks.

The chain is also offering employees up to four hours of paid time off to get their own shots.

The promotion is one of the few “freebies” for people who have gotten vaccinated, but the number is likely to grow as vaccine availability increases. (A Phoenix marijuana dispensary is offering its own incentive: free edibles to people who show their card.)

For Krispy Kreme, it’s the continuation of a series of giveaways that started in 2020. Last year, the company says it gave away over 30 million doughnuts to health care workers, first responders, teachers, coaches, and graduating seniors to help keep spirits up.

Last year, the chain also began delivering doughnuts nationwide, via its website or app. The increased presence comes as competition has heated up in the fried dough world. McDonald’s has, in past years, begun to explore the doughnut space, and Dunkin’ (formerly Dunkin’ Donuts) continues to turns heads with its coffee brands.

You won’t be able to have the free doughnut delivered, though. To claim a free doughnut, you’ll have to bring your card into your nearest Krispy Kreme shop.