diff --git a/core/misc/tableheader.js b/core/misc/tableheader.js
index 364cad207f962d4e392d9759aef83cd725b4e542..0d4f7cd279f53d960864f709cf61adbaae02cd5e 100644
--- a/core/misc/tableheader.js
+++ b/core/misc/tableheader.js
@@ -7,9 +7,6 @@
  */
 Drupal.behaviors.tableHeader = {
   attach: function (context) {
-    if (!$.support.fixedPosition) {
-      return;
-    }
     $(window).one('scroll.TableHeaderInit', {context: context}, tableHeaderInitHandler);
   }
 };