Roger Stone may need to cut down on his Infowars appearances.

U.S. District Court Judge Amy Berman Jackson on Friday issued a gag order in the trial of the former adviser to President Trump, saying Stone's attorneys must "refrain from making statements to the media or in public settings that pose a substantial likelihood of material prejudice to this case," Politico reports.

Stone was arrested last month as part of Special Counsel Robert Mueller's investigation, and he pleaded not guilty to charges of witness tampering, lying to Congress, and obstruction, The New York Times reports.

But that hadn't slowed down Stone's media appearances, and he jumped on Alex Jones' InfoWars two times within a week after his arrest. This prompted Jackson to warn him earlier this month that he must stop acting like he's on "a book tour."

Axios reports that the gag order prevents Stone himself from making any comments about the investigation "within the vicinity of the courthouse." But Politico notes that the gag order only prevents him from talking about his case, and Jackson says he can continue talking about "foreign relations, immigration or Tom Brady" to his heart's desire. Brendan Morrow

Editor's note: This article has been updated to reflect that only Stone's attorneys are barred from making public case-related statements in any setting.