Elon Musk says he's stuck with his new Twitter name — 'Mr. Tweet'

Elon Musk changed his Twitter name in reference to a lawyer's mistake. Alex Kantrowitz

• Elon Musk recently updated his display name to "Mr. Tweet" and says he can't change it back.
• The name refers to an error made by a lawyer during the "funding secured" Tesla trial.
• Twitter users have complained about being unable to change their names before.

Elon Musk says he's stuck with his new Twitter display name — "Mr. Tweet."

The billionaire's recently updated name is a reference to a lawyer's error during a trial over Musk's "funding secured" Tesla tweets.

Nicholas Porritt, an attorney representing a group of shareholders who are suing Musk over his 2018 tweets, accidentally called Musk "Mr. Tweet" during the trial on Monday.

Porritt called the mistake a "Freudian slip," but Musk joked it was "probably an accurate description." 

Now Musk says he can't get his old display name back.

"Changed my name to Mr. Tweet, now Twitter won't let me change it back," he tweeted on Wednesday, along with a laughing emoji.

Twitter users have complained of having their names locked by the platform before.

In November, pop star Doja Cat turned to Musk for help after she accidentally locked her display name as "christmas." 

"i don't wanna be christmas forever @elonmusk please help i've made a mistake," she tweeted at the time.

According to a November report in The Verge, users who were verified under Twitter's legacy policy weren't able to change their display names on the app. The rule was aimed at preventing impersonation after Twitter's paid verification caused havoc for some brands and public figures. 

Representatives for Musk did not immediately respond to Insider's request for comment made outside of normal working hours.