Emilia Clarke spent a decade playing Daenerys Targaryen on HBO’s Game of Thrones, an iconic character that she will be connected to for her entire career. Now that the show is behind her, though, Clarke is opening up about her experience playing the Queen of Dragons, and she has revealed that one of Daenerys’ trademarks was actually an accident. According to Clarke, Daenerys’ consistently great posture wasn’t a character decision, it was just a result of her being nervous when the show started.

Speaking to ComicBook.com’s Brandon Davis about her new series, Marvel’s Secret Invasion, Clarke was asked about lessons she learned from Game of Thrones that she brought to the Marvel Cinematic Universe. Clarke was quick to launch into a story about how sitting up straight when she first got to set resulted in a really uncomfortable eight seasons.

“People often spoke about Khaleesi’s very straight back being very good posture. I was a terrified 22-year-old. My mama told me to sit up straight, so I did,” Clarke explained. “And then you’re stuck with it. I didn’t know I was going to go on for 10 years.”

Clarke went on to say that she tried to change things up later on, asking showrunners David Benioff and D.B. Weiss if she could slouch a little more and adjust her posture. Because Daenerys had become known for her, it was impossible to change. Clarke made sure that didn’t happen with her new Marvel character, in the case she ends up playing her for an extended period of time.

“Every time with David and Dan I’d be like, ‘What if she’s sitting in a throne like this?’ And they’re like, ‘No, you can’t,’” she said. “So with G’iah, I was like, ‘She’s be nimble, she’s be flexible, she’s a mover.’”