Montana legislators on Tuesday rejected an attempt to ban a transgender member of the state House of Representatives from using the women's restroom at the state Capitol, with some Republicans joining Democrats in opposing the measure.

A measure to bar Montana Rep. Zooey Zephyr, the state’s first transgender legislator, from using the women’s restroom at the state capitol failed to pass the House rules committee Tuesday, with several Republicans voting against it.

The proposal would have effectively barred transgender women from using the State Capitol restroom for female lawmakers. Some Republicans joined Democrats in voting it down.

The Montana Legislature’s Joint Rules Committee on Tuesday voted down a proposed rule change targeted at a Democratic transgender representative from Missoula that sought to designate the use of private restrooms shared by the two chambers based on a lawmakers’ sex chromosomes at birth.