ALLENDALE, Mich. (AP) — A student is suing a Michigan university for the right to keep a guinea pig on campus for emotional support.

Kendra Velzen says Grand Valley State University in western Michigan is violating federal housing rules. The 28-year-old from Grand Rapids says a guinea pig helps her cope with physical and emotional challenges.

The lawsuit says the Allendale school backed off a bit and let Velzen have a guinea pig while a complaint was pending with the Michigan Civil Rights Department.

But her lawyer says that accommodation could change anytime. Stephen Dane says he wants the school policy declared illegal so his client and other students can benefit.

Grand Valley says it hasn't seen the lawsuit and declined to comment Monday.