diff --git a/Classes/Hooks/DataHandler.php b/Classes/Hooks/DataHandler.php
index 2a06a16..f144e93 100644
--- a/Classes/Hooks/DataHandler.php
+++ b/Classes/Hooks/DataHandler.php
@@ -64,6 +64,10 @@ public function clearCachePostProc(array $params, \TYPO3\CMS\Core\DataHandling\D
             return;
         }
 
+        if (!array_key_exists('table', $params)) {
+            return;
+        }
+
         if (isset($dataHandler->datamap[$params['table']][$params['uid']]['l10n_parent'])) {
             $this->tagsToFlush[] = $params['table'] . '_' . $dataHandler->datamap[$params['table']][$params['uid']]['l10n_parent'];
         }