diff --git a/reference/strings/functions/setlocale.xml b/reference/strings/functions/setlocale.xml
index 70af58f923..3a51cdc7c2 100644
--- a/reference/strings/functions/setlocale.xml
+++ b/reference/strings/functions/setlocale.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.18 $ -->
+<!-- $Revision: 1.19 $ -->
 <!-- splitted from ./en/functions/strings.xml, last change in rev 1.2 -->
   <refentry id="function.setlocale">
    <refnamediv>
@@ -59,6 +59,13 @@
       </listitem>
      </itemizedlist>
     </para>
+    <note>
+     <simpara>
+      As of PHP 4.2.0, passing <parameter>Category</parameter> as a string is
+      deprecated, use the above constants instead.  Passing them as a string
+      (within quotes) will result in a warning message.
+     </simpara>
+    </note>
     <para>
      If <parameter>locale</parameter> is the empty string
      <literal>""</literal>, the locale names will be set from the