As more people continue to spend money on Uber rides, credit card companies are taking note and figuring out ways to incentivize riders to use their cards. Capital One and Uber debuted a new partnership giving free rides to users of the ride-hailing service when they use Capital One Quicksilver cards.
From June until March 2017, every 10th Uber ride is free, up to $15, when previous rides are paid for with Capital One’s Quicksilver or QuicksilverOne credit cards. Once a rider has earned the free ride, the ride will automatically load to the rider’s Uber account and can be used anytime.
Get Data Sheet, Fortune’s technology newsletter.
What makes the partnership unique, explained Uber’s vice president of strategic initiatives David Richter, is that the promotion is baked into the Uber app so customers can see how many rides they need until getting a free ride. Within the payments section of Uber’s app, Capital One (COF) card holders will see a free rides section where they can see how many rides they have accumulated.
For more on Uber, watch:
It’s worth stressing that the promotion only applies to Uber rides paid for directly with a Capital One credit card uploaded to the Uber app. It will not apply with a card used with another mobile wallet, such as PayPal or Apple Wallet.
This isn’t Uber’s first loyalty partnership with a credit card company. Uber has also worked with American Express to allow riders to use the financial giant’s rewards points to pay for rides and earn double points when using American Express (AXP) cards on Uber rides.