diff --git a/search2/search/search.inc.php b/search2/search/search.inc.php
index 3238d7b..b3e15ac 100755
--- a/search2/search/search.inc.php
+++ b/search2/search/search.inc.php
@@ -5,6 +5,7 @@ require_once('search/SearchCommandParser.php');
 require_once('search/SearchCommandLexer.php');
 require_once('search/fieldRegistry.inc.php');
 require_once('search/expr.inc.php');
+require_once(KT_LIB_DIR . '/security/Permission.inc');
 
 function rank_compare($a, $b)
 {