diff --git a/app/views/messages/inbox.html.erb b/app/views/messages/inbox.html.erb
index a27d7f15c..b38792e97 100644
--- a/app/views/messages/inbox.html.erb
+++ b/app/views/messages/inbox.html.erb
@@ -2,8 +2,10 @@
   <%= javascript_include_tag "messages" %>
 <% end %>
 
+<% content_for :heading_class, "pb-0" %>
+
 <% content_for :heading do %>
-  <ul class="nav nav-pills">
+  <ul class="nav nav-tabs">
     <li class="nav-item">
       <a class="nav-link active"><%= t ".my_inbox" %></a>
     </li>
diff --git a/app/views/messages/outbox.html.erb b/app/views/messages/outbox.html.erb
index 562bd9df1..6710388e5 100644
--- a/app/views/messages/outbox.html.erb
+++ b/app/views/messages/outbox.html.erb
@@ -2,8 +2,10 @@
   <%= javascript_include_tag "messages" %>
 <% end %>
 
+<% content_for :heading_class, "pb-0" %>
+
 <% content_for :heading do %>
-  <ul class="nav nav-pills">
+  <ul class="nav nav-tabs">
     <li class="nav-item">
       <%= link_to t(".my_inbox"), inbox_messages_path, :class => "nav-link" %>
     </li>