Why does this script not create the part? [solved]

My script is supposed to spawn a new part 15 studs above a part named "trigger" in the model "mine"

When I click the button that the script is in, nothing happens. No errors. What is wrong?

function dropbrick()
	local brick = Instance.new("Part")
	brick.Position = game.Workspace:FindFirstChild("mine").trigger.Position + Vector3.new(0,15,0)
end

script.Parent.ClickDetector.MouseClick:connect(dropbrick)