diff --git a/addons/web/static/src/xml/base.xml b/addons/web/static/src/xml/base.xml
index 5a416938362..752ad974042 100644
--- a/addons/web/static/src/xml/base.xml
+++ b/addons/web/static/src/xml/base.xml
@@ -341,7 +341,7 @@
                     <t t-raw="item.label"/>
                 </a>
             </t>
-            <div class="dropdown-menu" role="menu">
+            <div class="dropdown-menu o_dropdown_menu" role="menu">
                 <t t-foreach="widget.items[section.name]" t-as="item">
                     <t t-if="section.name == 'files'">
                         <t t-set="item.title">