diff --git a/addons/mail/views/mail_message_views.xml b/addons/mail/views/mail_message_views.xml
index 56f7b6871c1..d224fb2ccc0 100644
--- a/addons/mail/views/mail_message_views.xml
+++ b/addons/mail/views/mail_message_views.xml
@@ -150,7 +150,7 @@
                     <field name="res_name"/>
                     <templates>
                         <t t-name="kanban-box">
-                            <div class="oe_kanban_global_area o_kanban_attachment">
+                            <div class="oe_kanban_global_area o_kanban_attachment oe_kanban_global_click">
                                 <div class="o_kanban_image">
                                     <div class="o_kanban_image_wrapper">
                                         <t t-set="webimage" t-value="new RegExp('image.*(gif|jpeg|jpg|png)').test(record.mimetype.value)"/>