diff --git a/src/ElementalSearchExtension.php b/src/ElementalSearchExtension.php
index 4ce97c3..3ba8881 100644
--- a/src/ElementalSearchExtension.php
+++ b/src/ElementalSearchExtension.php
@@ -22,7 +22,7 @@ public function onAfterPublish(&$original)
      * Force a re-index of the parent page on archive of element
      * @param Versioned $original
      */
-    public function onAfterDelete(&$original)
+    public function onAfterDelete()
     {
         $this->updateSearchContent();
     }
@@ -45,4 +45,4 @@ public function updateSearchContent()
             }
         }
     }
-}
\ No newline at end of file
+}