1 files changed, 3 insertions, 1 deletions
diff --git a/ipv6-update.rsc b/ipv6-update.rsc
index 350fc4b..d173347 100644
--- a/ipv6-update.rsc
+++ b/ipv6-update.rsc
@@ -19,7 +19,9 @@
   :global ParseKeyValueStore;
   :global ScriptLock;
 
-  $ScriptLock $ScriptName;
+  :if ([ $ScriptLock $ScriptName ] = false) do={
+    :return false;
+  }
 
   :if ([ :typeof $PdPrefix ] = "nothing") do={
     $LogPrintExit2 error $ScriptName ("This script is supposed to run from ipv6 dhcp-client.") true;