The Ohio House on Wednesday voted to ban transgender students from using school bathrooms that align with their gender identity.

The surprise, late-night vote concluded a marathon legislative session before lawmakers break for the summer − and potentially until after the November election. House Republicans tacked the measure onto a separate bill dealing with the state’s college credit program.

The Senate must agree with the changes before it heads to Gov. Mike DeWine’s desk.

A House panel approved a standalone bill on transgender bathroom use in April, but Speaker Jason Stephens, R-Kitts Hill, hadn’t brought it up for a full vote. Proponents contend it will protect children, while critics say it’s another attempt by the GOP-controlled Legislature to restrict the rights of LGBTQ Ohioans.