Index: extensions/AdditionalPages/admin/add_page.inc.php
===================================================================
--- extensions/AdditionalPages/admin/add_page.inc.php	(revision 9272)
+++ extensions/AdditionalPages/admin/add_page.inc.php	(revision 9273)
@@ -36,5 +36,5 @@
     if (!empty($ids))
     {
-      array_push($page['errors'], sprintf(l10n('Permalink %s is already used by additional page %s'), $permalink, $ids[0]));
+      array_push($page['errors'], sprintf(l10n('ap_permalink_already_used'), $permalink, $ids[0]));
     }
     $permalink = '"'.$permalink.'"';