On Saturday, Aug. 23, participating Krispy Kreme stores will be celebrating a special House of Hogwarts day. Any Harry Potter fan who reps their favorite Hogwarts House will get one free original glazed doughnut without having to purchase anything, while supplies last.

The collection, called the Harry Potter Houses of Hogwarts x Krispy Kreme Collection, will be available beginning Monday, Aug. 18 for a limited time. The collection features four "enchanting doughnuts that bring the four Hogwarts houses to life through delicious flavors,

Hufflepuff – an unglazed shell doughnut filled with brown butter toffee flavored custard, dipped in golden yellow icing, and topped with black chocolate drizzle, cookie crunch, and the Hufflepuff crest. Ravenclaw – an Original Glazed doughnut dipped in blueberry flavored icing, topped with the Ravenclaw sprinkles and crest.