diff --git a/reference/mbstring/functions/mb-strrpos.xml b/reference/mbstring/functions/mb-strrpos.xml
index 4408918490..90fe07f0dc 100644
--- a/reference/mbstring/functions/mb-strrpos.xml
+++ b/reference/mbstring/functions/mb-strrpos.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.5 $ -->
+<!-- $Revision: 1.6 $ -->
 <!-- splitted from ./en/functions/mbstring.xml, last change in rev 1.1 -->
   <refentry id="function.mb-strrpos">
    <refnamediv>
@@ -50,9 +50,11 @@
     </note>
     <note>
      <simpara>
-      As of PHP 5.2.0, for back compatibility, <parameter>encoding</parameter> 
-      can be specified as the third parameter. However, doing so is 
-      deprecated and will be removed from a future release of PHP.
+      The <parameter>encoding</parameter> parameter was moved from
+      the third position to the fourth in PHP 5.2.0.  For backward
+      compatibility, <parameter>encoding</parameter> can be specified
+      as the third parameter, but doing so is deprecated and will be
+      removed in the future.
      </simpara>
     </note>
    </refsect1>