diff --git a/reference/network/functions/getmxrr.xml b/reference/network/functions/getmxrr.xml
index c4704f2d63..4ddff07472 100644
--- a/reference/network/functions/getmxrr.xml
+++ b/reference/network/functions/getmxrr.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.5 $ -->
+<!-- $Revision: 1.6 $ -->
 <!-- splitted from ./en/functions/network.xml, last change in rev 1.2 -->
   <refentry id="function.getmxrr">
    <refnamediv>
@@ -33,7 +33,7 @@
       <simpara>
        This function should not be used for the purposes of address
        verification.  Only the mailexchangers found in DNS are returned,
-       however, according to <ulink url="&url.rfc974;">RFC 974</ulink>
+       however, according to <ulink url="&url.rfc2821;">RFC 2821</ulink>
        when no mail exchangers are listed, <parameter>hostname</parameter>
        itself should be used as the only mail exchanger with a priority of
        <literal>0</literal>.