diff --git a/mod/lti/locallib.php b/mod/lti/locallib.php
index f92e4cbc2b3..5fc0b6a3e69 100644
--- a/mod/lti/locallib.php
+++ b/mod/lti/locallib.php
@@ -3090,6 +3090,10 @@ function lti_sign_jwt($parms, $endpoint, $oauthconsumerkey, $typeid = 0, $nonce
     $kid = get_config('mod_lti', 'kid');
     $jwt = JWT::encode($payload, $privatekey, 'RS256', $kid);
 
+    $newparms = array();
+    $newparms['id_token'] = $jwt;
+
+    return $newparms;
 }
 
 /**