Former President Bill Clinton On Thursday called on the U.S. Supreme Court to strike down the Defense of Marriage Act (DOMA), the 1996 law signed into law by Clinton which prevents federal agencies from recognizing the legal marriages of gay and lesbian couples.

“When I signed the bill, I included a statement with the admonition that 'enactment of this legislation should not, despite the fierce and at times divisive rhetoric surrounding it, be understood to provide an excuse for discrimination,'” Clinton wrote in an op-ed published in The Washington Post. “Reading those words today, I know now that, even worse than providing an excuse for discrimination, the law is itself discriminatory. It should be overturned.”

“I join with the Obama administration, the petitioner Edith Windsor, and the many other dedicated men and women who have engaged in this struggle for decades in urging the Supreme Court to overturn the Defense of Marriage Act.”

Clinton also reiterated his support for marriage equality.

The Supreme Court will hear oral arguments in Windsor v. United States later this month and is expected to hand down a ruling in June.