diff --git a/index.php b/index.php
index 78701a4..c368d8a 100644
--- a/index.php
+++ b/index.php
@@ -44,8 +44,9 @@ if (isset($_SESSION['files'])
 $filter='';
 if (isset($_GET['f'])) {
   if ($_GET['f'] != '') {
-    $t = array('('=> '\(', ')' => '\)');
+    $t = array('(' => '\(', ')' => '\)');
     $f = strtr($_GET['f'], $t);
+    error_log('----------'.$f.'----------');
     $files = array_values(preg_grep('/.*'.$f.'.*/i', $files));
     $filter='&f='.$_GET['f'];
   }