After replacing Twitter’s little blue bird with an X logo, Elon Musk changed it again. On Tuesday afternoon, Musk replaced Twitter’s X logo with one that has slightly thicker lines — but then said he would reverse the change.

“I don’t like the thicker bars, so reverting,” Musk writes on Twitter. “The logo will evolve over time.” You can see how the two logos compare in the image embedded above.

The updated logo had already made its way to Twitter’s homepage, and Musk even changed his profile picture to