Gord Wyant says he has concerns as to whether the decades-old section of the code is still valid.
The code allows landlords to reject certain renters if an owner or owner's family is living on one side of a two-unit building.
For example, if an owner lives in one side of a duplex, he or she can turn away a tenant for the other unit based on sex or sexual orientation.
Wyant says it's concerning that there are exceptions within the code that have the effect of discriminating against people.
But the justice minister says he has heard that single women may only want to rent to other women, so there need to be talks about safety if the code is to be changed.