Alternative paid days off for employees who work on holidays

Is it required to provide alternative days off for employees who work a holiday at home?
By Stuart Rudner
|Canadian Employment Law Today


We require supervisors to be available to respond to emergencies 24 hours a day. On a statutory holiday, the supervisor works from home and is only expected to respond to phone calls. We pay the supervisors for working the holiday but do not give a day off in lieu. Are we obligated to provide an additional day off?