diff --git a/docs/examples/filter.php b/docs/examples/demo.php
similarity index 95%
rename from docs/examples/filter.php
rename to docs/examples/demo.php
index 5340d848..fa8c74b2 100644
--- a/docs/examples/filter.php
+++ b/docs/examples/demo.php
@@ -48,7 +48,7 @@ will filter it.</p>
 }
 
 ?>
-<form name="filter" action="filter.php" method="post">
+<form name="filter" action="demo.php" method="post">
     <fieldset>
         <legend>HTML</legend>
         <textarea name="html" cols="60" rows="15"><?php