diff --git a/includes/menu.inc b/includes/menu.inc
index a173b9293f5fa01348938340f15f17cdf516a68f..6352937466f024923266bc71d109637ba1104473 100644
--- a/includes/menu.inc
+++ b/includes/menu.inc
@@ -82,7 +82,11 @@ function bootstrap_menu_link(array $variables) {
     // Set dropdown trigger element to # to prevent inadvertant page loading with submenu click
     $element['#localized_options']['attributes']['data-target'] = '#';
   }
-  
+  // Issue #1896674 - On primary navigation menu, class 'active' is not set on active menu item.
+  // @see http://drupal.org/node/1896674
+  if (($element['#href'] == $_GET['q'] || ($element['#href'] == '<front>' && drupal_is_front_page())) && (empty($element['#localized_options']['language']) || $element['#localized_options']['language']->language == $language_url->language)) {
+    $element['#attributes']['class'][] = 'active';
+  }
   $output = l($element['#title'], $element['#href'], $element['#localized_options']);
   return '<li' . drupal_attributes($element['#attributes']) . '>' . $output . $sub_menu . "</li>\n";
 }