In this Aug. 20, 2007, file photo, author Harper Lee smiles during a ceremony honoring the four new members of the Alabama Academy of Honor at the Capitol in Montgomery, Ala. "To Kill a Mockingbird" will be made available as an e-book and digital audiobook in July 2014, filling one of the biggest gaps in the electronic library. Author Harper Lee said in a rare public statement Monday, April 28, 2014, issued through HarperCollins Publishers, that while she still favored "dusty" books she had signed on for making "Mockingbird" available to a "new generation." (AP Photo/Rob Carr, File)

MONROEVILLE, Ala. -- A lawsuit settlement between "To Kill a Mockingbird" author Harper Lee and a museum in her Alabama hometown has failed.

An attorney for Lee filed court papers Monday seeking reinstatement of a suit she filed against the Monroe County Heritage Museum in Monroeville.

Lee's attorney told the court in February that a settlement had been reached over the museum's use of Lee's name and book title on souvenirs it sells. Her attorney, Norman Stockman, notified the court Monday that the museum won't proceed with the settlement without additional terms not previously agreed to by the parties.

U.S. District Judge William Steele issued an order Tuesday saying he needs to know whether a settlement agreement was signed. If it was, the judge says Lee must pursue a separate action to enforce it.