A flag supporting the transgender community flew over Boston City Hall for the first time Monday afternoon.

Boston Mayor Marty Walsh tweeted a photo of the flag, which has blue, pink, and white stripes.

Proud to fly the #TransFlag over Boston City Hall for the 1st time in MA history – a sign that everyone is welcome. pic.twitter.com/Nwpm8lAeJo — Mayor Marty Walsh (@marty_walsh) May 2, 2016

“Proud to fly the #TransFlag over Boston City Hall for the 1st time in MA history – a sign that everyone is welcome,” he wrote.

Walsh said the flag will continue to fly until all citizens see equality under Massachusetts law.

A bill that aims to extend protections for transgender people beyond the workplace and into public places is making its way through the state legislature.

Information from the Associated Press was used in this report.