diff --git a/authparams.php b/authparams.php
index bf0d53b..26fb08a 100644
--- a/authparams.php
+++ b/authparams.php
@@ -69,7 +69,7 @@ class authparams
   // {{{
   {
     if (!isset ($_SESSION) || session_id () === "")
-      session_start ();
+      throw new \Exception ("No session previously enabled", 403);
     if (!isset ($_SESSION["domframework"]["auth"]["email"]) ||
         !isset ($_SESSION["domframework"]["auth"]["password"]))
       throw new \Exception ("No previous email in session", 403);