diff --git a/reference/session/ini.xml b/reference/session/ini.xml
index f6578679cb..1bf5ef610b 100644
--- a/reference/session/ini.xml
+++ b/reference/session/ini.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.41 $ -->
+<!-- $Revision: 1.42 $ -->
 <section id="session.configuration">
  &reftitle.runtime;
  &extension.runtime;
@@ -338,7 +338,7 @@
     <simpara>
      <literal>session.gc_maxlifetime</literal> specifies the number
      of seconds after which data will be seen as 'garbage' and
-     cleaned up.
+     cleaned up. Garbage collection occurs during session start.
     </simpara>
     <note>
      <para>
@@ -452,6 +452,9 @@
      <literal>0</literal>. See also
      <function>session_get_cookie_params</function> and
      <function>session_set_cookie_params</function>.
+     Since the cookie is returned by the browser, it is not prolonged to
+     suffice the lifetime. It must be sent manually by
+     <function>setcookie</function>.
     </simpara>
    </listitem>
   </varlistentry>