diff --git a/module/tree/test/tree.class.php b/module/tree/test/tree.class.php
index e342097fbf..419d3d8d3a 100644
--- a/module/tree/test/tree.class.php
+++ b/module/tree/test/tree.class.php
@@ -5,8 +5,9 @@ class treeTest
     {
         global $config, $tester;
 
+        $config->webRoot     = '';
         $config->requestType = 'PATH_INFO';
-        $this->objectModel = $tester->loadModel('tree');
+        $this->objectModel   = $tester->loadModel('tree');
     }
 
     /**