diff --git a/check-lte-firmware-upgrade.rsc b/check-lte-firmware-upgrade.rsc
index 6030e4d..1a5e08c 100644
--- a/check-lte-firmware-upgrade.rsc
+++ b/check-lte-firmware-upgrade.rsc
@@ -10,9 +10,9 @@
 
 :local ExitOK false;
 :onerror Err {
-  :global GlobalFunctionsReady;
-  :retry { :if ($GlobalFunctionsReady != true) \
-      do={ :error ("Global functions not ready."); }; } delay=500ms max=50;
+  :global GlobalConfigReady; :global GlobalFunctionsReady;
+  :retry { :if ($GlobalConfigReady != true || $GlobalFunctionsReady != true) \
+      do={ :error ("Global config and/or functions not ready."); }; } delay=500ms max=50;
   :local ScriptName [ :jobname ];
 
   :global SentLteFirmwareUpgradeNotification;