diff --git a/libraries/classes/Controllers/Table/SearchController.php b/libraries/classes/Controllers/Table/SearchController.php
index 648e40b299..bcd8d61a3c 100644
--- a/libraries/classes/Controllers/Table/SearchController.php
+++ b/libraries/classes/Controllers/Table/SearchController.php
@@ -413,7 +413,7 @@ class SearchController extends AbstractController
         }
 
         $htmlAttributes .= ' onfocus="return '
-                        . 'verifyAfterSearchFieldChange(' . $column_index . ', \'#tbl_search_form\')"';
+                        . 'verifyAfterSearchFieldChange(' . $search_index . ', \'#tbl_search_form\')"';
 
         $value = $this->template->render('table/search/input_box', [
             'str' => '',