The Barrie Campus of Georgian College will re-open tomorrow (Thursday) and classes will resume, except in E Building.
That's where this morning's fire broke out.
Georgian says E Building will stay closed and students should check Blackboard and their Banner timetable for new class locations and exceptions.
Smoke billowed through several buildings and firefighters broke windows to assist with ventilation.
The fire was contained to an office and a classroom.
There were no injuries.
The Fire Marshall has been on scene to try and determine what sparked the flames.
The E Building is home to the hospitality and tourism department.