Christmas will be coming a little bit early for fans of Bones.

In just two weeks, Zooey Deschanel will guest star alongside Emily Deschanel in the show’s holiday episode. Although the two are sisters in real life, the (500) Days of Summer actress will appear as Bones’ cousin Margaret from Minnesota. Maybe she can treat us to a rendition of “Baby It’s Cold Outside” while she’s there?

The family reunion will air on Thursday, December 10.