diff --git a/repository/filesystem/lib.php b/repository/filesystem/lib.php
index 7b34ea56355..12ab6699803 100644
--- a/repository/filesystem/lib.php
+++ b/repository/filesystem/lib.php
@@ -163,6 +163,7 @@ class repository_filesystem extends repository {
                 }
                 if (empty($choices)) {
                     $mform->addElement('static', '', '', get_string('nosubdir', 'repository_filesystem', $path));
+                    $mform->addElement('hidden', 'fs_path', $fieldname, '');
                 } else {
                     $mform->addElement('select', 'fs_path', $fieldname, $choices);
                     $mform->addElement('static', null, '',  get_string('information','repository_filesystem', $path));