diff --git a/addons/crm/crm_lead_view.xml b/addons/crm/crm_lead_view.xml
index 393b3fd5916..01968ee6ed6 100644
--- a/addons/crm/crm_lead_view.xml
+++ b/addons/crm/crm_lead_view.xml
@@ -358,7 +358,7 @@
                         <button name="%(crm.crm_lead_lost_action)d" string="Mark Lost"
                                 type="action" class="oe_highlight"
                                 context="{'default_lead_id': active_id}"
-                                attrs="{'invisible': [('active', '=', False)]}"/>
+                                attrs="{'invisible': [('active', '=', False),('probability', '&lt;', 100)]}"/>
                         <button name="%(crm.crm_activity_log_action)d" string="Log Activity" type="action" class="btn-link"
                             attrs="{'invisible': [('active', '=', False)]}"/>
                         <field name="stage_id" widget="statusbar" clickable="True"