diff --git a/core/misc/tableheader.js b/core/misc/tableheader.js
index 901b650..e2b9500 100644
--- a/core/misc/tableheader.js
+++ b/core/misc/tableheader.js
@@ -149,7 +149,7 @@
       // Clone the table header so it inherits original jQuery properties.
       var $stickyHeader = this.$originalHeader.clone(true);
       // Hide the table to avoid a flash of the header clone upon page load.
-      this.$stickyTable = $(document.createElement('table'))
+      this.$stickyTable = $('<table class="sticky-header"/>')
         .css({
           visibility: 'hidden',
           position: 'fixed',
@@ -158,9 +158,8 @@
         // Copy classes from originalTable, remove undesired classes, and add
         // sticky-header. Any other classes added to originalTable by modules
         // will exists in stickyTable to ensure consistent styling.
-        .attr('class', this.$originalTable.attr('class'))
+        .addClass(this.$originalTable.attr('class'))
         .removeClass('sticky-enabled tableheader-processed sticky-table')
-        .addClass('sticky-header')
         .append($stickyHeader)
         .insertBefore(this.$originalTable);