How Do I Make MiniMap Black from ingame?

[Aztec_devil2000]

Hello, (i know its a simple Qustion)
How do i make a minimap black ingame.

i dont want people looking at the minimap where i have made my work.
i dont want that uve gota exsplore and you will viserble out the map i want it fully black so you dont know where anything is?

Thanks