diff --git a/packages/ui-default/templates/partials/nav.html b/packages/ui-default/templates/partials/nav.html
index 30e479ae1..741f7e0d7 100644
--- a/packages/ui-default/templates/partials/nav.html
+++ b/packages/ui-default/templates/partials/nav.html
@@ -57,7 +57,7 @@
       </li>
     {% endif %}
       <li class="nav__list-item" data-dropdown-pos="bottom right" data-dropdown-custom-class="nav__dropdown" data-dropdown-target="#menu-nav-user" data-dropdown-disabledconstrainToWindow data-dropdown-trigger-desktop-only>
-        <a href="{{ url('user_detail', uid=handler.user._id) }}" class="nav__item">{{ handler.user.displayName }} ({{ handler.user.uname }}) <span class="icon icon-expand_more nojs--hide"></span></a>
+        <a href="{{ url('user_detail', uid=handler.user._id) }}" class="nav__item">{% if handler.user.displayName and handler.user.displayName != handler.user.uname %}{{ handler.user.displayName }} ({{ handler.user.uname }}){% else %}{{ handler.user.uname }}{% endif %} <span class="icon icon-expand_more nojs--hide"></span></a>
         <ol class="dropdown-target menu" id="menu-nav-user">
           <li class="menu__item">
             <a href="{{ url('user_detail', uid=handler.user._id) }}" class="menu__link">