diff --git modules/filter/filter.module modules/filter/filter.module
index 0eecb30..2022905 100644
--- modules/filter/filter.module
+++ modules/filter/filter.module
@@ -487,7 +487,7 @@ function filter_list_format($format) {
     $filters[$format] = array();
     $result = db_select('filter', 'filter')
       ->fields('filter')
-      ->condition('format', $format)
+      ->condition('format', (int) $format)
       ->condition('status', 1)
       ->orderBy('weight')
       ->orderBy('module')