The dispute over Mac Hall at the University of Calgary has hit another chapter.
Officials say negotiations over ownership and management of the building have broken down after three months of mediation.
The Students Union took legal action against the university last year, claiming it was a co-owner of the building.
Both sides agreed to mediation in December, but that has solved nothing.
The SU says it is open to resuming negotiations, adding the next step would be to seek an injunction to prevent the university from terminating the current deal.