The Critics’ Choice Awards Sunday night turned out to be a huge event for “Big Bang Theory” star Mayim Bialik. The 40-year-old actress won her first award!

Bialik was nominated for Best Supporting Actress in a Comedy Series for her role as Amy Farrah Fowler on the CBS sitcom. She was competing with Kether Donohue (“You’re the Worst”), Allison Janney (“Mom”), Judith Light (“Transparent”), Niecy Nash (“Getting On”) and Eden Sher (“The Middle”). With so many talented actresses nominated for the award, Bialik was shocked when her name was read as the winner.

“Um, the reason I look so surprised is I’ve actually never won anything,” she told the crowd when she took the stage. “Thank you to our amazing writers. Thank you to our cast, to Chuck Lorre, Steve Molaro and Bill Prady. I literally didn’t prepare anything.”

But despite not being prepared to accept the award, she did reveal that she’s dedicating it to her father, Barry, who died in April.

“My dad died nine and a half months ago and he was my harshest critic,” she added. “And he never lived to see me win anything. So, this is for you.”

The Critics’ Choice Awards are airing on A&E Sunday night. Click HERE for live stream information and HERE for a full list of nominees.