Sean Hannity has made no secret of his zeal for a Donald Trump presidency, but may have taken his passion for the candidate a little too far.

Fox News says the primetime host will no longer be able to appear in promotions for a Presidential candidate after he was spotted making a cameo in an eight-minute-long video from the Republican nominee’s campaign that surfaced on YouTube.

“We were not aware of Sean Hannity participating in a promotional video and he will not be doing anything along these lines for the remainder of the election season,” the network said in a statement. Most cable-news networks and other media outlets have rules about on-air talent aligning themselves with political causes or candidates, though Hannity is often portrayed as part of Fox News’ opinion programming. He’s not a journalist, in the strictest sense of the word.

During a brief appearance in the video, Hannity lists some reasons why he chose to back Trump,  citing the candidate’s vow to eliminate President Obama’s “Obamacare” health-care system for people who do not have other kinds of health insurance to his policy on immigration.

Hannity has been part of the Fox News primetime lineup since the 21st Century Fox-owned outlet launched in 1996. He currently anchors the network’s 10 p.m. hour, along with a nationally syndicated radio program. He has — a powerful and influential platform, especially in an election year — as well as his own nationally syndicated radio program. He has been a vociferous supporter of Trump throughout the current cycle.