diff --git a/reference/session/functions/session-unset.xml b/reference/session/functions/session-unset.xml
index feebcd8973..15713dec5c 100644
--- a/reference/session/functions/session-unset.xml
+++ b/reference/session/functions/session-unset.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.6 $ -->
+<!-- $Revision: 1.7 $ -->
 <!-- splitted from ./en/functions/session.xml, last change in rev 1.8 -->
   <refentry id="function.session-unset">
    <refnamediv>
@@ -23,7 +23,8 @@
       If <varname>$_SESSION</varname> (or
       <varname>$HTTP_SESSION_VARS</varname> for PHP 4.0.6 or less) is
       used, use <function>unset</function> to unregister a session
-      variable, i.e. <literal>unset ($_SESSION['varname'])</literal>;
+      variable, i.e. <literal>unset ($_SESSION['varname']);</literal> and
+      <literal>$_SESSION = array();</literal> to free all the registred variables.
      </para>
     </note>
     <para>