A former Goldman Sachs vice president filed suit in New York State Supreme Court in Manhattan on Wednesday morning, claiming he was terminated from the investment bank in retaliation for raising formal concerns about discrimination he says he faced for being gay.

William Littleton claims he spent eight years with the company, rising to become one of the most visible senior LGBTQ leaders at the bank. Yet despite Goldman’s publicly stated commitments to diversity, Littleton said in the complaint that the culture at the investment bank remains inhospitable to LGBTQ employees.