diff --git a/modules/hs_menu.module b/modules/hs_menu.module
index d812d07..7ddca58 100644
--- a/modules/hs_menu.module
+++ b/modules/hs_menu.module
@@ -216,7 +216,9 @@ function hs_menu_hierarchical_select_valid_item($item, $params) {
   }
 
   // Ensure that this isn't the excluded menu link.
-  $valid = $valid && $item != $params['exclude'][0] . $params['exclude'][1];
+  if (isset($params['exclude'])) {
+    $valid = $valid && $item != $params['exclude'][0] . $params['exclude'][1];
+  }
 
   return $valid;
 }