Emily and Zooey Deschanel
04/01/2011 AT 10:00 AM EDT
04/01/2011 AT 09:30 AM EDT
She just went public with the news that she's pregnant
, and Emily Deschanel has already gotten her first round of public congratulations from a very special celebrity: Her sister, Zooey.
"My big sister, Emily (aka bones) Deschanel and her husby, David Hornsby, are going to have a baby!" Zooey Tweeted
Thursday. "I am super excited to be an aunt!"
star Emily, 34, and her husband announced Thursday they are expecting their first child together. She is due later this year.
– Sara Hammel