Courteney Cox Files for Divorce
updated 06/14/2012 AT 09:15 AM EDT
•originally published 06/13/2012 AT 10:00 PM EDT
The actress filed divorce papers on the same day as Arquette's June 8 filing in Los Angeles Superior Court. Cox's filing, which surfaced the day after her ex's papers, cites the same reason for the split and requests the same custody arrangement.
Like Arquette, Cox, 47, cites irreconcilable differences and seeks joint legal and physical custody of their 8-year-old daughter Coco.
Cox, who also requests to drop "Arquette" from her last name, is representing herself without lawyer, just like her former significant other.
Cox told PEOPLE in January that she and her ex have remained "best friends" even since announcing their separation in 2010.