diff --git a/main/inc/lib/SessionFieldValue.class.php b/main/inc/lib/SessionFieldValue.class.php
deleted file mode 100644
index f42212e475..0000000000
--- a/main/inc/lib/SessionFieldValue.class.php
+++ /dev/null
@@ -1,11 +0,0 @@
-<?php
-
-class SessionFieldValue extends ExtraFieldValue
-{
-
-    public function __construct()
-    {
-        parent::__construct('session');
-    }
-
-}
diff --git a/main/inc/lib/sessionmanager.lib.php b/main/inc/lib/sessionmanager.lib.php
index 2bd9bf1a4a..28f92d50a6 100755
--- a/main/inc/lib/sessionmanager.lib.php
+++ b/main/inc/lib/sessionmanager.lib.php
@@ -207,7 +207,7 @@ class SessionManager
                 if (!empty($session_id)) {
                     $extraFields['session_id'] = $session_id;
 
-                    $sessionFieldValue = new SessionFieldValue();
+                    $sessionFieldValue = new ExtraFieldValue('session');
                     $sessionFieldValue->save_field_values($extraFields);
 
                     /*
@@ -1473,7 +1473,7 @@ class SessionManager
 
                 $extraFields['session_id'] = $id;
 
-                $sessionFieldValue = new SessionFieldValue();
+                $sessionFieldValue = new ExtraFieldValue('session');
                 $sessionFieldValue->save_field_values($extraFields);
 
                 return $id;
diff --git a/main/session/index.php b/main/session/index.php
index fcb9c361aa..6fda6ee794 100755
--- a/main/session/index.php
+++ b/main/session/index.php
@@ -22,7 +22,7 @@ require_once api_get_path(SYS_CODE_PATH).'exercice/exercise.class.php';
 
 $session_id = isset($_GET['session_id']) ? intval($_GET['session_id']): null;
 
-$sessionField = new SessionFieldValue();
+$sessionField = new ExtraFieldValue('session');
 $valueAllowVisitors = $sessionField->get_values_by_handler_and_field_variable($session_id, 'permitir_visitantes');
 
 $allowVisitors = $valueAllowVisitors != false;