diff --git a/Verbraucher_extern/module.php b/Verbraucher_extern/module.php
index 8c7eaf1..31172b9 100644
--- a/Verbraucher_extern/module.php
+++ b/Verbraucher_extern/module.php
@@ -87,22 +87,23 @@ class Verbraucher_extern extends IPSModule
             return array_values(array_unique($kombinationen)); 
         }
     
+        private  function findCombinationRecursive($power, $values, $currentCombination, $startIndex, &$result) {
+            if ($power == 0) {
+            $result = $currentCombination;
+            return true;
+            }
+            if ($power < 0) {
+            return false;
+            }
+          }      
 
         private  function findCombination($power, $values) {
               $result = [];
-              $found = findCombinationRecursive($power, $values, [], 0, $result);
+              $found = $this->findCombinationRecursive($power, $values, [], 0, $result);
               return $found ? $result : null;
             }
             
-        private  function findCombinationRecursive($power, $values, $currentCombination, $startIndex, &$result) {
-              if ($power == 0) {
-              $result = $currentCombination;
-              return true;
-              }
-              if ($power < 0) {
-              return false;
-              }
-            }      
+
     private function find($target, $values, $current, &$result) {
                 if ($target == 0) {
                     $result[] = $current;