The building's name was changed to Willis Tower in July 2009 after the Willis Group bought the skyscraper. "Time" magazine called the name change one of the top 10 worst corporate name changes. An online petition was created to change their decision. The naming rights issue continued into 2013. It began when a news reporter of the "Chicago Tribune" said in 2013 that "We're stubborn about such things. This month marked four years since the former Sears Tower was re-christened Willis Tower, and the new name has yet to stick."