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>