When you spend just $1 or more before taxes and fees on an order from the fast-food chain through DoorDash and use the promo code BIGMAC, you’ll get the famous menu item for free.

DoorDash will donate $1 for every Big Mac order placed during the promotional period to Ronald McDonald House Charities Canada, up to $150,000 (CAD).

Offer valid for one (1) Big Mac^® sandwich while supplies last and $0 Delivery Fee. Offer valid 11/02/2020 through 11/09/2020. Valid only on orders with a minimum subtotal of $1 or more, before taxes and fees. Valid only at participating McDonald’s restaurants in Canada. Limit one per person. Other fees (including service fees), taxes, and gratuity still apply. Must use promo code BIGMAC to redeem. See full terms and conditions at help.doordash.com/consumers/s/article/offer-terms-conditions.