DoorDash is celebrating the nationwide rollout of McDelivery with DoorDash by offering 1 million Big Mac sandwiches for only 1 cent each (plus fees) from September 30 through October 4 with the promo code 1MBIGMAC. Also, DoorDash customers who take advantage of this offer will automatically be entered for a chance to win $1 million.

In July, McDonald’s and DoorDash announced a new partnership which brought McDelivery to over 200 restaurants in Houston. Through DoorDash’s partnership with McDonald’s, McDelivery will expand to more than 10,000 restaurants nationwide by the end of the year, covering over 70 percent of the U.S. system.

“Since rolling out our national partnership with McDonald’s in July, we’ve been blown away by the excitement and demand from our customers,” says Toby Espinosa, VP of Business Development at DoorDash. “When thinking of how we could celebrate the nationwide rollout of McDelivery through DoorDash, we knew we had to go BIG. We’re so excited to offer 1 million customers a 1 cent Big Mac and a chance to win $1 million.”

McDonald’s is also a part of DashPass, DoorDash’s nationwide subscription program. For $9.99 a month, DashPass offers its members unlimited $0 delivery fees on orders of $12 or more from thousands of participating restaurants. Through DashPass, DoorDash is the only on-demand logistics platform that offers McDelivery without delivery fees.

By using the code 1MBIGMAC to order a 1 cent Big Mac (plus fees), customers will also be entered for a chance to win $1 million, and one lucky winner will be randomly chosen at the end of the promotion. The promotion will run from September 30 to October 4, or until 1 million 1 cent Big Mac offers are redeemed, whichever occurs first. These Big Mac sandwiches are only available via locations from which DoorDash delivers. To get your 1 cent Big Mac, visit doordash.com or download DoorDash for Android or iOS. Limit one offer per person.