How to change true/false to Yes/no from custom document property?

Hi,

I have a toggle (Yes/No) field in a SharePoint document library. When I tried to use this toggle field on Word template, the field becomes true/false field. I would like to have Yes or No showing on the document. I tried to use IF formula, it always shows "No". Would anyone can help me on this?

This is the formula:

Thank you so much!