diff --git a/lib/navigationlib.php b/lib/navigationlib.php
index a0d47f101eb..3970aaca3b0 100644
--- a/lib/navigationlib.php
+++ b/lib/navigationlib.php
@@ -2917,6 +2917,7 @@ class global_navigation extends navigation_node {
                     self::TYPE_SETTING, null, 'privatefiles', new pix_icon('i/privatefiles', ''));
                 $node->display = false;
                 $node->showinflatnavigation = true;
+                $node->mainnavonly = true;
             }
         }