diff --git a/features/safe-mode.xml b/features/safe-mode.xml
index 1e4ce54c50..7fc0f5b392 100644
--- a/features/safe-mode.xml
+++ b/features/safe-mode.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.18 $ -->
+<!-- $Revision: 1.19 $ -->
  <chapter id="features.safe-mode">
   <title>Safe Mode</title>
 
@@ -72,8 +72,11 @@ Warning: open_basedir restriction in effect. File is in wrong directory in
    </screen>
   </para>
   <para>
-   You can also disable individual functions. If we add this to our php.ini 
-   file: 
+   You can also disable individual functions. Note that the disable_functions 
+   directive can not be used outside of the php.ini file which means that
+   you cannot disable functions on a per-virtualhost or per-directory basis
+   in your httpd.conf file.
+   If we add this to our php.ini file: 
    <programlisting role="ini">
 <![CDATA[
 disable_functions readfile,system