Gone are the days when late-night hosts bashed each other on air. These days, hosts tend to avoid overt animosity, keeping their comments about the competition as supportive as possible. But Donald Trump’s election has reignited ratings battles in what was once a relatively predictable race—with Jimmy Fallon always on top—and clearly, the competitive spirit is alive and well. Exhibit A: each week that Stephen Colbert’s Late Show tops Fallon’s Tonight Show in the ratings, the Colbert staff celebrates with a pizza party.

According to The New York Times, the staff chows down every Tuesday that Nielsen ratings have Late Show topping Tonight’s total viewership for the preceding week. So far, that means Late Show staffers have enjoyed nine pizza parties in a row—with another likely to come this Tuesday. Fallon has managed to close the gap in recent weeks, and still dominates the coveted 18 to 49 demo—but the competition is undeniably stiff.

Even so, the hosts have saved their public barbs for the subjects they’re lampooning—mostly the president—rather than one another. When asked to comment on Fallon ruffling Trump’s hair last fall—a moment some have framed as the catalyst for the ratings shift—Colbert seemed reluctant to ding his chief rival. “The theory that that hair tousle made a difference is based on the supposition that Jimmy’s fans went to him for political acumen,” Colbert told the Times. “I don’t think so. They go there for fun. They go there for his nature, his spirit.”

As Colbert’s network neighbor James Corden saw it, the Tonight host faced a “really unfair” amount of backlash for the incident. And months ago, when rumors swirled that CBS might be eyeing the Late Late Show host to take over Colbert’s time slot—before his post-election ratings upswing—Corden repeatedly refuted the idea, saying, “It just seems sort of silly to me. I really love [Colbert]. So I always find it slightly embarrassing. I really don’t think there’s any substantial evidence at all. I really don’t think it exists.”

As Fallon hones his approach and makes his play for a return to the throne, though, you can bet that the competition behind the scenes is getting fiercer—even if the hosts are kinder to one another in the press.