Mark Zuckerberg denied that he defended the rights of Holocaust deniers on Wednesday — in an attempt to clarify earlier comments he made on a podcast.

Zuckerberg gave the explanation to Recode after the site aired audio of the Facebook founder claiming “abhorrent” content has a right to spread across his massive social media network.

His response called the issue of censoring Facebook trolls “challenging.”

“I personally find Holocaust denial deeply offensive, and I absolutely didn’t intend to defend the intent of people who deny that,” Zuckerberg told the website.

“Of course if a post crossed a line into advocating for violence or hate against a particular group, it would be removed… These issues are very challenging but I believe that often the best way to fight offensive bad speech is with good speech.”

In his earlier remarks, the Facebook founder said that although Holocaust denial was “deeply offensive” it should not be removed from the website.

“At the end of the day, I don’t believe that our platform should take that down because I think there are things that different people get wrong,” he said.

“I don’t think that they’re intentionally getting it wrong.”

Facebook has been under scrutiny for its role in letting “fake news” and hate speech exist on its platform.