diff --git a/addons/crm/views/crm_lead_views.xml b/addons/crm/views/crm_lead_views.xml
index 48ddac5e8d8..7eb28b0841d 100644
--- a/addons/crm/views/crm_lead_views.xml
+++ b/addons/crm/views/crm_lead_views.xml
@@ -10,7 +10,7 @@
                             type="object" class="oe_highlight" data-hotkey="w" title="Mark as won"
                             attrs="{'invisible': ['|','|', ('active','=',False), ('probability', '=', 100), ('type', '=', 'lead')]}"/>
                         <button name="%(crm.crm_lead_lost_action)d" string="Lost" data-hotkey="l" title="Mark as lost"
-                            type="action" context="{'default_lead_id': active_id}" attrs="{'invisible': ['|', ('type', '=', 'lead'),('active', '=', False),('probability', '&lt;', 100)]}"/>
+                            type="action" context="{'default_lead_id': active_id}" attrs="{'invisible': ['|', ('type', '=', 'lead'), '&amp;',('active', '=', False),('probability', '&lt;', 100)]}"/>
                         <button name="%(crm.action_crm_lead2opportunity_partner)d" string="Convert to Opportunity" type="action" help="Convert to Opportunity"
                             class="oe_highlight" attrs="{'invisible': ['|', ('type', '=', 'opportunity'), ('active', '=', False)]}" data-hotkey="v"/>
                         <button name="toggle_active" string="Restore" type="object" data-hotkey="z"