diff --git a/reference/filesystem/functions/file-exists.xml b/reference/filesystem/functions/file-exists.xml
index daaba720e3..398086543a 100644
--- a/reference/filesystem/functions/file-exists.xml
+++ b/reference/filesystem/functions/file-exists.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.2 $ -->
+<!-- $Revision: 1.3 $ -->
 <!-- splitted from ./en/functions/filesystem.xml, last change in rev 1.2 -->
   <refentry id="function.file-exists">
    <refnamediv>
@@ -25,6 +25,11 @@
      The results of this function are cached. See
      <function>clearstatcache</function> for more details.
     </simpara>
+    <simpara>
+     On windows use "//computername/share/filename" or
+     "\\\\computername\share\filename" to check files on
+     network shares.
+    </simpara>
    </refsect1>
   </refentry>