How do i make the billboardgui not change its size while zooming out/in?

[Madpoint83]

I made an NPC with a BillboardGui that has a Frame inside of it.
BillboardGui adornee = Characters head
BillboardGui Size = {4, 0},{1, 0}
BillboardGui Size Offset = 0, 2
Frame Size = 1,0,1,0

Screenshot close:

Screenshot far:

Roblox Studio File:
BillboardGui.rbxl (22.7 KB)