How do I set an automatic update for this to retrieve players upon joining to add more to the GUI?

--	// FileName: GUICreatorV2.lua
--	// Written by: ManOfTrust32
--  // Description: Console SurfaceGUI creation script

game.Players.PlayerAdded:connect(function(player)
		-- Sets player as GUI owner
		local owner = SurfaceGUI.GUIOwner
		owner.Value = player
		-- Creates player avatars and their buttons
		for x, player in pairs(game.Players:GetChildren()) do
			if owner.Value == player then
				return true
			else
				local avatar = game.ServerStorage["Player Avatar/Button"].PlayerAvatar:Clone()
				avatar.Parent = SurfaceGUI.Main.ScrollingFrame
				avatar.Name = player.Name
				avatar.Image = "http://www.roblox.com/Thumbs/Avatar.ashx?x=150&y=150&Format=Png&username="..player.Name
				local button = game.ServerStorage["Player Avatar/Button"].PlayerButton:Clone()
				button.Parent = SurfaceGUI.Main.ScrollingFrame
				button.Name = player.Name.."'s Button"
				button.Text = player.Name
			end
		end

Been thinking on this one and also tested what I have. First player join doesn't add the second player to their GUI yet second player obviously adds the first.