diff --git a/library/Icinga/Data/Filter/Filter.php b/library/Icinga/Data/Filter/Filter.php
index 2ae475ead..8a794d6d9 100644
--- a/library/Icinga/Data/Filter/Filter.php
+++ b/library/Icinga/Data/Filter/Filter.php
@@ -227,6 +227,8 @@ abstract class Filter
      * Create filter from queryString
      *
      * This is still pretty basic, need improvement
+     *
+     * @return static
      */
     public static function fromQueryString($query)
     {