diff --git a/Shelly_Parser_MQTT/module.php b/Shelly_Parser_MQTT/module.php
index 823ab30..cdfa4e6 100644
--- a/Shelly_Parser_MQTT/module.php
+++ b/Shelly_Parser_MQTT/module.php
@@ -207,7 +207,7 @@ private function HandleRPC(string $deviceID, string $payload): void
      * ---------------------------------------------------------*/
     private function EnsureBooleanVariable(string $deviceID, string $ident, string $name): int
     {
-        $folderID = $this->GetDeviceFolder($deviceID);
+        $folderID = @IPS_GetObjectIDByIdent($folderIdent, $this->InstanceID);
 
         // Immer im Ordner suchen
         foreach (IPS_GetChildrenIDs($folderID) as $cid) {