diff --git a/libs/web/luasrc/view/cbi/tabcontainer.htm b/libs/web/luasrc/view/cbi/tabcontainer.htm
index 9b2c7980a8..5f1a80d610 100644
--- a/libs/web/luasrc/view/cbi/tabcontainer.htm
+++ b/libs/web/luasrc/view/cbi/tabcontainer.htm
@@ -13,7 +13,7 @@ $Id$
 -%>
 
 <% for tab, data in pairs(self.tabs) do %>
-	<div id="container.<%=self.config%>.<%=section%>.<%=tab%>"<% if tab ~= self.selected_tab then %> style="display:none"<% end %>>
+	<div class="cbi-tabcontainer" id="container.<%=self.config%>.<%=section%>.<%=tab%>"<% if tab ~= self.selected_tab then %> style="display:none"<% end %>>
 		<% if data.description then %><div class="cbi-tab-descr"><%=data.description%></div><% end %>
 		<% self:render_tab(tab, section, scope or {}) %>
 	</div>