diff --git a/functions/strings.xml b/functions/strings.xml
index d32c6568c4..04f6f32e02 100644
--- a/functions/strings.xml
+++ b/functions/strings.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.155 $ -->
+<!-- $Revision: 1.156 $ -->
  <reference id="ref.strings">
   <title>String functions</title>
   <titleabbrev>Strings</titleabbrev>
@@ -151,6 +151,9 @@ echo addcslashes("zoo['.']", 'z..A');
      of <parameter>str</parameter>. The conversion is done byte-wise
      with the high-nibble first.
     </para>
+    <para>
+     See also <function>pack</function> and <function>unpack</function>.
+    </para>
    </refsect1>
   </refentry>