Germany must allow citizens to select a third gender category on all official documents, a court ruled Wednesday.

The ruling found that providing only male or female categories on government documents violated anti-discrimination laws and citizens’ constitutional right to privacy.

A law has been in place since 2013 in Germany allowing parents to register newborn babies as neither male nor female if the child is born with characteristics of both genders. However, the new ruling goes further, establishing a deadline of Dec. 31, 2018 for the German federal government to create a new gender category or remove gender entirely from official documents.

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More: Time