diff --git a/reference/apache/functions/apache-request-headers.xml b/reference/apache/functions/apache-request-headers.xml
index 0ffd0eee2b..e95f586039 100644
--- a/reference/apache/functions/apache-request-headers.xml
+++ b/reference/apache/functions/apache-request-headers.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.4 $ -->
+<!-- $Revision: 1.5 $ -->
 <!-- splitted from ./en/functions/apache.xml, last change in rev 1.2 -->
   <refentry id="function.apache-request-headers">
    <refnamediv>
@@ -52,6 +52,9 @@ foreach ($headers as $header => $value) {
      </para>
     </note>
     &reference.apache.note-nsapi-module;
+    <para>
+     See also <function>apache_response_headers</function>.
+    </para>
    </refsect1>
   </refentry>