diff --git a/include/functions_search.inc.php b/include/functions_search.inc.php
index 81e081f1f..b45558068 100644
--- a/include/functions_search.inc.php
+++ b/include/functions_search.inc.php
@@ -628,7 +628,7 @@ SELECT
   {
     if (count($image_ids_for_filter) > 1)
     {
-      $items = array_unique(array_intersect(...array_values($image_ids_for_filter)));
+      $items = array_values(array_unique(array_intersect(...array_values($image_ids_for_filter))));
     }
     else
     {