Apple Inc. Chief Executive Officer Tim Cook changed his name to “Tim Apple” on Twitter Thursday, playing along with a gaffe made by U.S. President Donald Trump during a meeting at the White House on Wednesday.

Cook changed his Twitter name to Tim followed by the company’s Apple logo, which only Mac and iOS users can see. It appears as a small square box for others.

The move came after Trump misspoke and called Cook, who was sitting next to him, “Tim Apple” at a meeting with members of the American Workforce Policy Advisory Board. A video of the incident quickly went viral online.

Cook didn’t seem to be affected by the flub at the White House, but Trump’s daughter Ivanka Trump, who was seated with her father, acknowledged it humourously on Twitter.