diff --git a/restapi/index.php b/restapi/index.php
index 6c92840f8..8540a0924 100644
--- a/restapi/index.php
+++ b/restapi/index.php
@@ -2164,7 +2164,7 @@ final class SeedDMS_RestapiController { /* {{{ */
         $role = isset($params['role']) ? $params['role'] : 3;
         $roleobj = $role == 'admin' ? SeedDMS_Core_Role::getInstance(1, $dms) : ($role == 'guest' ? SeedDMS_Core_Role::getInstance(2, $dms) : SeedDMS_Core_Role::getInstance($role, $dms));
         if(!$roleobj) {
-            return $response->withJson(array('success'=>false, 'message'=>'Missing role', 'data'=>''), 400);
+            return $this->renderer->json($response, array('success'=>false, 'message'=>'Missing role', 'data'=>''), 400);
         }
 
         $newAccount = $dms->addUser($userName, seed_pass_hash($password), $fullname, $email, $language, $theme, $comment, $roleobj);