diff --git a/core/misc/vertical-tabs.js b/core/misc/vertical-tabs.js
index c7ad2fd..a297be5 100644
--- a/core/misc/vertical-tabs.js
+++ b/core/misc/vertical-tabs.js
@@ -115,12 +115,16 @@
   Drupal.verticalTab = function (settings) {
     var self = this;
     $.extend(this, settings, Drupal.theme('verticalTab', settings));
+    // Get the ID of the tab pane element.
+    var detailsId = settings.details.attr('id');
 
-    this.link.attr('href', '#' + settings.details.attr('id'));
+    this.link.attr('href', '#' + detailsId);
 
     this.link.on('click', function (e) {
       e.preventDefault();
       self.focus();
+      // Update the URL bar with the hash.
+      window.location.hash = detailsId;
     });
 
     // Keyboard events added:
@@ -129,6 +133,8 @@
       if (event.keyCode === 13) {
         event.preventDefault();
         self.focus();
+        // Update the URL bar with the hash.
+        window.location.hash = detailsId;
         // Set focus on the first input field of the visible details/tab pane.
         $('.vertical-tabs__pane :input:visible:enabled').eq(0).trigger('focus');
       }