diff --git a/modules/gui/server-ups.lua b/modules/gui/server-ups.lua
index 798ac45e..9d294b36 100644
--- a/modules/gui/server-ups.lua
+++ b/modules/gui/server-ups.lua
@@ -33,7 +33,7 @@ Gui.element{
 UsesServerUps:on_load(function(player_name, visible)
     local player = game.players[player_name]
     local label = player.gui.screen[server_ups.name]
-    if not global.ext or not global.ext.server_ups then visible = false end
+    if not External.valid() or not global.ext.var.server_ups then visible = false end
     label.visible = visible
 end)