diff --git a/functions/filesystem.xml b/functions/filesystem.xml
index 51e51ad51c..e7c043ad65 100644
--- a/functions/filesystem.xml
+++ b/functions/filesystem.xml
@@ -8,7 +8,7 @@
      instead -->
 
      <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.144 $ -->
+<!-- $Revision: 1.145 $ -->
  <reference id="ref.filesystem">
   <title>Filesystem functions</title>
   <titleabbrev>Filesystem</titleabbrev>
@@ -1959,7 +1959,7 @@ if($fp){
       <methodparam><type>string</type><parameter>filename</parameter></methodparam>
      </methodsynopsis>
     <para>
-     Returns &true; if the filename exists and is a regular file.
+     Returns &true; if the filename exists and is a regular file, &false; otherwise.
     </para>
     <para>
      The results of this function are cached. See