diff --git a/reference/info/functions/getrusage.xml b/reference/info/functions/getrusage.xml
index e150c96091..19c325e904 100644
--- a/reference/info/functions/getrusage.xml
+++ b/reference/info/functions/getrusage.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.2 $ -->
+<!-- $Revision: 1.3 $ -->
 <!-- splitted from ./en/functions/info.xml, last change in rev 1.2 -->
   <refentry id="function.getrusage">
    <refnamediv>
@@ -33,6 +33,11 @@ echo $dat["ru_utime.tv_usec"]; # user time used (microseconds)
      </example>
      See your system's man page on getrusage(2) for more details.
     </para>
+    <note>
+     <simpara>
+      This function does not work on Windows systems.
+     </simpara>
+    </note>
    </refsect1>
   </refentry>