diff --git a/test/classes/navigation/PMA_NavigationTree_test.php b/test/classes/navigation/PMA_NavigationTree_test.php
index 456513a6e7..6ba50cc366 100644
--- a/test/classes/navigation/PMA_NavigationTree_test.php
+++ b/test/classes/navigation/PMA_NavigationTree_test.php
@@ -51,6 +51,7 @@ class PMA_NavigationTreeTest extends PHPUnit_Framework_TestCase
         $GLOBALS['cfg']['Server']['host'] = 'localhost';
         $GLOBALS['cfg']['Server']['user'] = 'root';
         $GLOBALS['cfg']['Server']['pmadb'] = '';
+        $GLOBALS['cfg']['Server']['DisableIS'] = false;
 
         $GLOBALS['pmaThemeImage'] = 'image';
         $_SESSION['PMA_Theme'] = PMA_Theme::load('./themes/pmahomme');
diff --git a/test/classes/navigation/PMA_Node_test.php b/test/classes/navigation/PMA_Node_test.php
index ca55d8cca7..bc7b35876e 100644
--- a/test/classes/navigation/PMA_Node_test.php
+++ b/test/classes/navigation/PMA_Node_test.php
@@ -26,6 +26,7 @@ class Node_Test extends PHPUnit_Framework_TestCase
     public function setup()
     {
         $GLOBALS['server'] = 0;
+        $GLOBALS['cfg']['Server']['DisableIS'] = false;
         $_SESSION['PMA_Theme'] = PMA_Theme::load('./themes/pmahomme');
     }