--- fb_url_rewrite.inc.bak	2011-03-08 12:59:22.546520678 +0100
+++ fb_url_rewrite.inc	2011-03-08 12:59:26.746526400 +0100
@@ -105,8 +105,8 @@ if (!function_exists('custom_url_rewrite
  */
 function fb_url_outbound_alter(&$path, &$options, $original_path) {
   if ((isset($options['external']) && $options['external']) ||
-      (isset($options['fb_url_alter']) && $options['fb_url_alter'] === FALSE)) {
-
+      (isset($options['fb_url_alter']) && $options['fb_url_alter'] === FALSE) ||
+      (!isset($options['fb_url_alter']))) {
     return;
   }
 
@@ -128,6 +128,7 @@ function fb_url_outbound_alter(&$path, &
 
   // Since we called fb_canvas_url_alter already, supress it from acting again.
   $options['fb_url_alter'] = FALSE;
+  $options['alias'] = $path;
 }
 
 /**