Automattic, the company that owns WordPress.com, is asking Automatic.CSS—a company that provides a CSS framework for WordPress page builders—to change its name amid public spats between Automattic founder Matt Mullenweg and Automatic.CSS creator Kevin Geary. Automattic has two T’s as a nod to Matt.

“As you know, our client owns and operates a wide range of software brands and services, including the very popular web building and hosting platform WordPress.com,” Jim Davis, an intellectual property attorney representing Automattic, wrote in a letter dated Oct. 30.