diff --git a/misc/tableheader.js b/misc/tableheader.js
index 47201b2..f4d053b 100644
--- a/misc/tableheader.js
+++ b/misc/tableheader.js
@@ -112,7 +112,7 @@ Drupal.tableHeader.prototype.eventhandlerRecalculateStickyHeader = function (eve
     // displaying incorrectly when the sticky header is no longer visible.
     for (var i = 0, il = this.originalHeaderCells.length; i < il; i += 1) {
       $that = $(this.originalHeaderCells[i]);
-      $stickyCell = this.stickyHeaderCells.eq($that.index());
+      $stickyCell = this.stickyHeaderCells.eq(i);
       display = $that.css('display');
       if (display !== 'none') {
         cellWidth = $that.css('width');