A male student has filed a federal civil rights lawsuit against the University of Colorado claiming the college discriminated against him during a sexual assault investigation that ultimately led to his expulsion.

The male student, identified in court documents only as John Doe, denies allegations that he sexually assaulted two female CU students and claims in the lawsuit that CU’s student-conduct investigation was biased against him because he is male.

This is the second lawsuit brought against the Boulder campus in the last two years by an anonymous male plaintiff under Title IX, the federal gender equity law that traditionally has been used to protect the rights of women. CU settled with the first male student who claimed gender discrimination in a sexual assault proceeding less than four months after he filed suit. In exchange for dropping the lawsuit suit and withdrawing from school, the campus paid that male student $15,000 in February 2015 and agreed not to disclose without a waiver the details of his disciplinary record, which includes convictions under the campus judicial process in a 2013 sexual assault case.

Asked about this most recent lawsuit, campus spokesman Ryan Huff defended the university, saying he’s confident the campus administers its Title IX obligations in a manner “that is not biased in favor of or against any student.”