diff --git a/libs/Smarty.class.php b/libs/Smarty.class.php
index 1b35d90b..fc8e29dc 100644
--- a/libs/Smarty.class.php
+++ b/libs/Smarty.class.php
@@ -582,7 +582,10 @@ class Smarty
       $this->_supers['get'] = $this->request_use_auto_globals ? $_GET : $GLOBALS['HTTP_GET_VARS'];
       $this->_supers['post'] = $this->request_use_auto_globals ? $_POST : $GLOBALS['HTTP_POST_VARS'];
       $this->_supers['server'] = $this->request_use_auto_globals ? $_SERVER : $GLOBALS['HTTP_SERVER_VARS'];
-      $this->_supers['session'] = $this->request_use_auto_globals ? $_SESSION : $GLOBALS['HTTP_SESSION_VARS'];
+      if(isset($_SESSION))
+        $this->_supers['session'] = $this->request_use_auto_globals ? $_SESSION : $GLOBALS['HTTP_SESSION_VARS'];
+      else
+        $this->_supers['session'] = array();
       $this->_supers['request'] = $this->request_use_auto_globals ? $_REQUEST : $GLOBALS['HTTP_REQUEST_VARS'];
       $this->_supers['cookies'] = $this->request_use_auto_globals ? $_COOKIE : $GLOBALS['HTTP_COOKIE_VARS'];
       $this->_supers['env'] = $this->request_use_auto_globals ? $_ENV : $GLOBALS['HTTP_ENV_VARS'];