diff --git a/helper.php b/helper.php
index 92cd7e5..0a225fe 100644
--- a/helper.php
+++ b/helper.php
@@ -203,6 +203,8 @@ public function move_page(&$opts, $checkonly = false) {
             }
 
             p_set_metadata($opts['new_id'], array('plugin_pagemove' => $page_meta), false, true);
+
+            unlock($ID);
         }
 
         $event->advise_after();