No. You have the choice to earn either Points or miles when you join the Loyalty Program. If you prefer to earn miles, select your airline and provide your frequent flyer program number.
If you have not indicated your earning preference, your earnings will default to Points. You can switch to and from earning Points to miles at any time by simply updating your online profile under My Account or by contacting Member Support and notifying a representative of your earning preference in advance of your hotel stay.