diff --git a/module/tree/control.php b/module/tree/control.php
index 2b3957afc4..e9ceb434e1 100644
--- a/module/tree/control.php
+++ b/module/tree/control.php
@@ -43,6 +43,7 @@ class tree extends control
             $this->loadModel('doc');
             if($rootID == 'product' or $rootID == 'project')
             {
+                $viewType = $rootID . 'doc';
                 $lib = new stdclass();
                 $lib->id   = $rootID;
                 $lib->name = $this->lang->doc->systemLibs[$rootID];