Caitlyn Jenner's transition hasn't been totally drama-free.

In a new clip from E!'s I Am Cait, Khloe Kardashian confronts Jenner about the negative comments she's made about Kris Jenner. The Jenners didn't exactly see eye-to-eye prior to the 65-year-old Olympian's transition, as evidenced by their testy interviews for Vanity Fair's June cover story introducing Caitlyn to the world. The two were married for 23 years, before divorcing in December 2014.

WATCH: Kris Jenner Says She Didn't Know About Caitlyn -- 'Why Would You Not Explain This All to Me?'

After Jenner brings up Khloe's "tough texts" she apparently sent to her, the 31-year-old reality star stands her ground during the testy conversation.

"I just said, 'We don't care what you're doing' -- meaning we don't care if you want to transition. We want to support you and be there for you," Khloe argues. "But, we don't think that that entails you speaking negatively about my mom. In our opinion, you don't even need to mention our mom ... let's not drag my mom through the mud."

She also brings up the Jenners' two daughters, Kendall and Kylie.

"I would think you would come from a place of more compassion, especially when you have two young daughters who are greatly affected by it," she says. "And then when you try to tell me I don't know what I'm talking about ... "

"Because you don't know," Jenner shoots back. "You don't know."

During Jenner's 20/20 interview with Diane Sawyer in April, the former Keeping Up With the Kardashians star admitted that out of all the children, Khloe was taking the news the hardest. "You would think out of all of the kids, Khloe is the most fun, open-minded...and that's not the case with Khloe," Jenner said. "She's very emotional. She's had the toughest time with it. Because she's had a lot of losses in her life. She lost her father at a young age. He died suddenly, cancer. You know, Lamar [Odom] had his issues."

WATCH: Khloe Kardashian -- My Sisters and I Still Refer to Caitlyn Jenner as 'Bruce'

However, Khloe isn't the only one who's confronted Jenner about her comments about the Kardashian family. Kim Kardashian got defensive in a previous I Am Cait episode, telling Jenner, "You look amazing. It's your time -- but you don't have to bash us on your way up." Watch below:

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