diff --git a/route.php b/route.php
index 5f08e4e..82a82ee 100644
--- a/route.php
+++ b/route.php
@@ -104,8 +104,9 @@ class route
       If module is set, the site is modular and a directory is named with module
       name
       @param string $destURL Do a redirection of the HTTP page
-      @param string $module The module name */
-  function redirect ($destURL, $module)
+      @param string $module The module name
+      @param boolean|null Permanent redirect (false by default) */
+  function redirect ($destURL, $module, $permanent = false)
   {
     if (php_sapi_name () === "cli")
       exit;
@@ -151,6 +152,8 @@ class route
     {
       header ("Cache-Control: no-store, no-cache, must-revalidate");
       header ("Pragma: no-cache");
+      if ($permanent)
+        header ("HTTP/1.1 301 Moved Permanently");
       header ("Location: $destURL");
     }
     else