If I can't fire the serverevent from here, where do I fire it?

The script won't even start, I'm trying to get the server to fire the script but It won't.

local repStorage = game:GetService("ReplicatedStorage")
local remote = repStorage.Events:WaitForChild("Get")

mouse.KeyDown:connect(function(Key)
if Key == "z" then
	remote:FireServer()
	end
end)