diff --git a/admin/webservice/forms.php b/admin/webservice/forms.php
index 33555336e4d..2c77dd6c34a 100644
--- a/admin/webservice/forms.php
+++ b/admin/webservice/forms.php
@@ -64,7 +64,8 @@ class external_service_form extends moodleform {
 
         $mform->addElement('searchableselector', 'requiredcapability', get_string('requiredcapability', 'webservice'), $capabilitychoices);
         $mform->setHelpButton('requiredcapability', array('requiredcapability', get_string('requiredcapability'), 'webservice'));
-        /// display notification error if the current requiredcapability doesn't exist anymore
+        $mform->setAdvanced('requiredcapability');
+/// display notification error if the current requiredcapability doesn't exist anymore
         if(empty($currentcapabilityexist)) {
             global $OUTPUT;
             $mform->addElement('static', 'capabilityerror', '', $OUTPUT->notification(get_string('selectedcapabilitydoesntexit','webservice', $service->requiredcapability)));