diff --git a/reference/http/constants.xml b/reference/http/constants.xml
index 1481865882..a7f55b8870 100644
--- a/reference/http/constants.xml
+++ b/reference/http/constants.xml
@@ -1,5 +1,5 @@
 <?xml version='1.0' encoding='iso-8859-1'?>
-<!-- $Revision: 1.4 $ -->
+<!-- $Revision: 1.5 $ -->
 <refentry id="http.constants">
  <refnamediv>
   <refname>Constants</refname>
@@ -738,7 +738,7 @@
    </varlistentry>
   </variablelist>
   <variablelist id="http.constants.request.dns">
-   <title>Constants affecting name lookups (DNS)</title>
+   <title>Constants used for the <literal>ipresolve</literal> &link.http.reqiest.option;</title>
    <varlistentry>
     <term>
      <constant>HTTP_IPRESOLVE_V4</constant>