Tesla Chief Executive Officer Elon Musk took to Twitter on Monday, saying he deleted his Tesla titles last week to see what would happen, without giving further details.

"Deleted my Tesla titles last week to see what would happen. I'm now the Nothing of Tesla. Seems fine so far," Musk said on Twitter.

Elon Musk tweet

Tesla did not immediately respond to a request for comment.

While Musk is referred to as chief executive officer in Tesla's investor relations web page, his biography page on the company website has no designation. The biography page had earlier referred to Musk as chairman, product architect and CEO.