diff --git a/reference/filesystem/functions/disk-free-space.xml b/reference/filesystem/functions/disk-free-space.xml
index af7d423416..fd276c7022 100644
--- a/reference/filesystem/functions/disk-free-space.xml
+++ b/reference/filesystem/functions/disk-free-space.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.3 $ -->
+<!-- $Revision: 1.4 $ -->
 <!-- splitted from ./en/functions/filesystem.xml, last change in rev 1.86 -->
   <refentry id="function.disk-free-space">
    <refnamediv>
@@ -25,6 +25,10 @@
 <?php
 // $df contains the number of bytes available on "/"
 $df = disk_free_space("/");
+
+// On Windows:
+disk_free_space("C:");
+disk_free_space("D:");
 ?>
 ]]>
       </programlisting>
diff --git a/reference/filesystem/functions/disk-total-space.xml b/reference/filesystem/functions/disk-total-space.xml
index a2a1050f1a..410d01b302 100644
--- a/reference/filesystem/functions/disk-total-space.xml
+++ b/reference/filesystem/functions/disk-total-space.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.3 $ -->
+<!-- $Revision: 1.4 $ -->
 <!-- splitted from ./en/functions/filesystem.xml, last change in rev 1.64 -->
   <refentry id="function.disk-total-space">
    <refnamediv>
@@ -25,6 +25,10 @@
 <?php
 // $df contains the total number of bytes available on "/"
 $df = disk_total_space("/");
+
+// On Windows:
+disk_total_space("C:");
+disk_total_space("D:");
 ?>
 ]]>
       </programlisting>