A Delaware judge on Wednesday granted Elon Musk’s request to add a whistleblower’s claims to his lawsuit against Twitter Inc (NYSE: TWTR ), but denied the billionaire’s request to delay the trial for Musk’s attempts to walk out of his $44 billion deal for the company, according to a court order.

“I am convinced that even a four-week delay would risk further damage to Twitter,” Judge Kathaleen McCormick of the Delaware Court of Chancery wrote.

Musk’s legal team argued in court Tuesday that justice required a delay of the five-day trial, currently scheduled to start on Oct. 17, in order to investigate allegations that Twitter misrepresented the security of its data.

Complaints were made public last month that provided Musk, the world’s richest person, with new ammunition to bolster what legal experts say was a long-term attempt to walk out of the deal without paying a $1,000 termination fee. millions of dollars.

Twitter’s former security chief Peiter Zatko, a notorious hacker known as “Mudge,” said in a complaint to regulators that the company falsely represented that it had a strong data security plan.

Twitter has sued Musk to enforce his April deal to buy the company for $54.20 a share.