diff --git a/classes/class.tx_caretakerinstance_Operation_MatchPredefinedVariable.php b/classes/class.tx_caretakerinstance_Operation_MatchPredefinedVariable.php
index 796139e..b5bb8e7 100644
--- a/classes/class.tx_caretakerinstance_Operation_MatchPredefinedVariable.php
+++ b/classes/class.tx_caretakerinstance_Operation_MatchPredefinedVariable.php
@@ -106,14 +106,19 @@ protected function getValueForKeyPath(array $keyPath)
         switch ($key) {
             case 'GLOBALS':
                 $value = $GLOBALS;
-
                 // decode TYPO3_CONF_VARS->EXT->extConf children if requested
                 if ($keyPath[0] == 'TYPO3_CONF_VARS' && $keyPath[1] == 'EXT' && $keyPath[2] == 'extConf' && $keyPath[3]) {
-                    $value = clone $GLOBALS;
-                    $serializedValue = $value[$keyPath[0]][$keyPath[1]][$keyPath[2]][$keyPath[3]];
-                    $value[$keyPath[0]][$keyPath[1]][$keyPath[2]][$keyPath[3]] = unserialize($serializedValue);
+                    $serializedValue = $GLOBALS['TYPO3_CONF_VARS']['EXT']['extConf'][$keyPath[3]];
+                    $value = array(
+                        'TYPO3_CONF_VARS' => array(
+                            'EXT' => array(
+                                'extConf' => array(
+                                    $keyPath[3] => unserialize($serializedValue),
+                                ),
+                            ),
+                        ),
+                    );
                 }
-
                 break;
 
             case '_POST':