diff --git a/misc/tableselect.js b/misc/tableselect.js
index d085a9b..26a3e23 100644
--- a/misc/tableselect.js
+++ b/misc/tableselect.js
@@ -13,7 +13,8 @@ Drupal.tableSelect = function() {
   var table = this, checkboxes, lastChecked;
   var strings = { 'selectAll': Drupal.t('Select all rows in this table'), 'selectNone': Drupal.t('Deselect all rows in this table') };
   var updateSelectAll = function(state) {
-    $('th.select-all input:checkbox', table).each(function() {
+    // Update table's select-all checkbox (and sticky header's if available).
+    $(table).prev('table.sticky-header').andSelf().find('th.select-all input:checkbox').each(function() {
       $(this).attr('title', state ? strings.selectNone : strings.selectAll);
       this.checked = state;
     });