Prime Minister Malcolm Turnbull might not be invited back to the Sydney Mardi Gras next year, after a motion was passed at the parade’s annual general meeting.

Mr Turnbull became the first sitting Prime Minister to attend a Gay and Lesbian Mardis Gras celebrationwhen he was welcomed to the parade in March.

But at an annual general meeting today members passed a motion for him to be declared not welcome at next year’s event.

Social activist Cat Rose said members of the LBGT community were outraged about his support for the same-sex marriage plebiscite.

“In calling himself a friend of the community he’s emboldened all those homophobes and told them all their views are valid and should be respected by the community,” she said.

The Board of the Mardi Gras is considering whether to support that motion.

Earlier this month, the Federal Government’s bid to hold a plebiscite on whether to legalise same-sex marriage was defeated in the Senate.

The proposal was voted down in the Upper House 33 votes to 29.

The Federal Government maintains a plebiscite would be the quickest way to achieve same-sex marriage and one could be held in February 2017.

But the Federal Opposition, joined by an increasing number of gay and lesbian groups, argues it would result in divisive debate that would hurt vulnerable members of the community. The plebiscite was estimated to cost $170 million.