Cheescake Factory giving away 40,000 slices to celebrate 40th birthday

The Cheesecake Factory is celebrating 40 years with a very sweet celebration.

The restaurant chain is teaming up the delivery service Door-Dash to give away 40,000 cheesecake slices .

The promotion begins Wednesday at 11:30 a.m. and continues until 10 p.m., or until supplies last.

Guests can add a slice of cheesecake or layer cake to a qualifying door-dash order by adding a promotional code.

Just enter "FREESLICE" at checkout.

Door-Dash specified on its blog you do not need to make an order to receive the deal.