diff --git a/features/remote-files.xml b/features/remote-files.xml
index cd6ac9100e..b1be14555b 100644
--- a/features/remote-files.xml
+++ b/features/remote-files.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.15 $ -->
+<!-- $Revision: 1.16 $ -->
  <chapter id="features.remote-files">
   <title>Using remote files</title>
 
@@ -73,7 +73,7 @@ if (!$file) {
     exit;
 }
 /* Write the data here. */
-fputs ($file, "$HTTP_USER_AGENT\n");
+fputs ($file, $HTTP_SERVER_VARS['HTTP_USER_AGENT'] . "\n");
 fclose ($file);
 ?>
 ]]>