1 files changed, 3 insertions, 1 deletions
diff --git a/check-lte-firmware-upgrade.rsc b/check-lte-firmware-upgrade.rsc
index 12d2dd4..18109fb 100644
--- a/check-lte-firmware-upgrade.rsc
+++ b/check-lte-firmware-upgrade.rsc
@@ -18,7 +18,9 @@
 
   :global ScriptLock;
 
-  $ScriptLock $ScriptName;
+  :if ([ $ScriptLock $ScriptName ] = false) do={
+    :return false;
+  }
 
   :if ([ :typeof $SentLteFirmwareUpgradeNotification ] != "array") do={
     :global SentLteFirmwareUpgradeNotification ({});