diff --git a/app/views/themes/index.rhtml b/app/views/themes/index.rhtml
index 0354489..8bffd86 100644
--- a/app/views/themes/index.rhtml
+++ b/app/views/themes/index.rhtml
@@ -37,7 +37,9 @@
     <tr>
       <td colspan='6'>
         <h2><%= _('Select theme') %></h2>
-        <%= button :home, _('Use the default theme'), { :action => 'unset'}, :method => 'post', :confirm => _('Are you sure you want to use the environment default theme?') %>
+        <% button_bar do %>
+          <%= button :home, _('Use the default theme'), { :action => 'unset'}, :method => 'post', :confirm => _('Are you sure you want to use the environment default theme?') %>
+        <% end %>
       </td>
     </tr>
     <% for themes in @themes.in_groups_of(3)  %>
--
libgit2 0.21.2