North Carolina procedural rule requires a person seeking punitive damages state initially a demand for monetary damages "in excess of $25,000."
The new complaint removed the reference to $50 million in damages.
Robinson and his lawyers announced the lawsuit last week following CNN's bombshell report saying Robinson allegedly posted salacious messages on a pornographic website.
The Republican Gubernatorial candidate has denied those claims. He said last week he is suing CNN for $50 million in damages.
The case is expected to be in court on November 18. This is about two weeks after the election.
EDITOR'S NOTE: Context was added to this report to explain why Robinson's attorneys amended their complaint.
The Associated Press contributed to this report