diff --git a/header.php b/header.php
index 671836e..9e4aee2 100644
--- a/header.php
+++ b/header.php
@@ -42,7 +42,7 @@
             <?php bloginfo('name'); ?>
           </a>
           <nav id="nav-main" class="nav-collapse" role="navigation">
-            <?php wp_nav_menu(array('theme_location' => 'primary_navigation', 'walker' => new Roots_Navbar_Nav_Walker())); ?>
+            <?php wp_nav_menu(array('theme_location' => 'primary_navigation', 'walker' => new Roots_Navbar_Nav_Walker(), 'menu_class' => 'nav')); ?>
           </nav>
         </div>
       </div>
diff --git a/inc/roots-cleanup.php b/inc/roots-cleanup.php
index eef9105..2dacfb0 100644
--- a/inc/roots-cleanup.php
+++ b/inc/roots-cleanup.php
@@ -490,7 +490,7 @@ class Roots_Navbar_Nav_Walker extends Walker_Nav_Menu {
 function roots_nav_menu_args($args = '') {
   $args['container']  = false;
   $args['depth']      = 2;
-  $args['items_wrap'] = '<ul class="nav">%3$s</ul>';
+  $args['items_wrap'] = '<ul class="%2$s">%3$s</ul>';
   if (!$args['walker']) {
     $args['walker'] = new Roots_Nav_Walker();
   }