--- a/cod_events_pane.inc	2013-07-12 14:34:43.000000000 +0200
+++ b/cod_events_pane.inc	2013-07-12 14:35:01.000000000 +0200
@@ -78,7 +78,7 @@
       }
       $tabs[date_format_date($date, 'custom', 'Y-m-d')] = array(
         'title' => date_format_date($date, 'custom', 'l F, d Y'),
-        'contents' => drupal_get_form('cod_events_timeslots_'.$day.'_form', $event, date_format_date($date, 'custom', 'Y-m-d')),
+        'contents' => drupal_get_form('cod_events_timeslots_form', $event, date_format_date($date, 'custom', 'Y-m-d')),
         'weight' => $weight,
       );
       if(!isset($default_tab))