diff --git a/balise/login_saml.php b/balise/login_saml.php
index e8b7827..9ae7bf5 100644
--- a/balise/login_saml.php
+++ b/balise/login_saml.php
@@ -53,11 +53,12 @@ function login_saml_successfull()
     spip_log("[auth_saml] Traitement login SAML");
 
     $attributes = $simplesaml->getAttributes();
+    spip_log("ATTRIBUTES: " . print_r($attributes, true));
     $login = $attributes['uid'][0];
     $first_name = $attributes['gn'][0];
-    $last_name = $attributes['Nom'][0];
+    $last_name = $attributes['sn'][0];
     $email = $attributes['email'][0];
-    $given_name = $first_name . ' ' . $last_name;
+    $display_name = $first_name . ' ' . $last_name;
 
     spip_log("[auth_saml] authentification reussi pour l'utilisateur =".$login);
 
@@ -70,7 +71,7 @@ function login_saml_successfull()
     if ($row_auteur) {
         $GLOBALS['auteur_session'] =  $row_auteur;
 
-        spip_log("[auth_saml] updating user [" . $login . "] attributes : ". $given_name);
+        spip_log("[auth_saml] updating user [" . $login . "] attributes : ". $display_name);
         spip_query("UPDATE spip_auteurs SET nom=" . _q($display_name) . ", email=" . _q($email) . " WHERE login="._q($login));
 
         $session = charger_fonction('session', 'inc');