diff --git a/VerbrauchInKategorie/module.php b/VerbrauchInKategorie/module.php
index 38c5d46..d9fbcaf 100644
--- a/VerbrauchInKategorie/module.php
+++ b/VerbrauchInKategorie/module.php
@@ -18,7 +18,7 @@ public function Create()
         $this->RegisterPropertyBoolean('CheckIntervall', false);
         $this->RegisterPropertyInteger('Intervall', 0);
 
-        $this->RegisterTimer('UpdateCalculation', 0, 'ViK_CalculateConsumption($IPS_[\'TARGET\']);');
+        $this->RegisterTimer('UpdateCalculation', 0, 'VIK_CalculateConsumption($_IPS[\'TARGET\']);');
     }
 
     public function Destroy()