diff --git a/reference/session/ini.xml b/reference/session/ini.xml
index 19f9af4d49..2d2fb8d083 100644
--- a/reference/session/ini.xml
+++ b/reference/session/ini.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.34 $ -->
+<!-- $Revision: 1.35 $ -->
 <section id="session.configuration">
  &reftitle.runtime;
  &extension.runtime;
@@ -475,8 +475,9 @@
    <listitem>
     <simpara>
      <literal>session.cookie_domain</literal> specifies the domain to
-     set in session_cookie. Default is none at all. See also
-     <function>session_get_cookie_params</function> and
+     set in session_cookie. Default is none at all meaning the host name of
+     the server which generated the cookie according to cookies specification.
+     See also <function>session_get_cookie_params</function> and
      <function>session_set_cookie_params</function>.
     </simpara>
    </listitem>