A lawmaker has proposed changing Mexico City's laws to extend marriage rights to gay and lesbian couples.

David Razu's bill will be reviewed by a committee for the city council on Tuesday. According to the Associated Press, there has not been an official date set for a vote, but he expects legislative action by the end of the year.

“We only want everyone treated equally under the law, there is no intention to violate anyone's rights, this simply acknowledges the rights of one social sector with no detriment to another,” he said, reported Agence France-Presse.

Mexico City's legislature is run by the liberal Democratic Revolutionary Party, which has legalized abortion and, two years ago, civil unions, despite the opposition of the Roman Catholic Church and other conservative groups.