COLUMBIA, Mo. (AP) — University of Missouri graduate student workers are planning a vote on whether to unionize.

The Forum on Graduate Rights on Friday announced a vote will take place over two days beginning April 18 at the Columbia campus.

Graduate student workers with photo identification can vote.

Students rallied after university officials in August gave graduate assistants 24-hour notice that health insurance subsidies would no longer be offered.

The school went back on its plan following a backlash. But that sparked discussions among graduate students over worker conditions.

Some graduate student workers are seeking better pay and benefits as well as full tuition waivers for graduate assistants.