Custom Trophy Buckles

I made a custom belt today with a trophy belt buckle and my belt buckle does not stay in the hole where my belt does not fall on me. I do not know why, since there is a curve in the metal piece that goes in the hole of the leather belt. What can I do to keep my trophy out of the loop hole?

I have the same problem too with my belt buckle. I just keep putting it back into the hole and it will stay until I sit down