diff --git a/functions/wddx.xml b/functions/wddx.xml
index 16102a44cd..d0339d7401 100644
--- a/functions/wddx.xml
+++ b/functions/wddx.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.17 $ -->
+<!-- $Revision: 1.18 $ -->
  <reference id="ref.wddx">
   <title>WDDX Functions</title>
   <titleabbrev>WDDX</titleabbrev>
@@ -15,8 +15,15 @@
     <option role="configure">--with-xml</option> and <option
     role="configure">--enable-wddx</option>.
    </para>
+   <note>
+    <para>
+      If you want to serialize non-ASCII characters you have to set
+      the appropriate locale before doing so (see 
+      <function>setlocale</function>).
+    </para>
+   </note>
    <para>
-    Note that all the functions that serialize variables use the first
+    All the functions that serialize variables use the first
     element of an array to determine whether the array is to be
     serialized into an array or structure.  If the first element has
     string key, then it is serialized into a structure, otherwise,