diff --git a/addons/crm/wizard/base_partner_merge_views.xml b/addons/crm/wizard/base_partner_merge_views.xml
index 0918d6ac3a4..259df710ee3 100644
--- a/addons/crm/wizard/base_partner_merge_views.xml
+++ b/addons/crm/wizard/base_partner_merge_views.xml
@@ -56,7 +56,7 @@
                                 You can remove contacts from this list to avoid merging them.
                             </p>
                             <group col="2">
-                                <field name="dst_partner_id" domain="[('id', 'in', partner_ids and partner_ids[0] and partner_ids[0][2] or False)]" attrs="{'required': [('state', '=', 'selection')]}"/>
+                                <field name="dst_partner_id" domain="[('id', 'in', partner_ids or False)]" attrs="{'required': [('state', '=', 'selection')]}"/>
                             </group>
                             <field name="partner_ids" nolabel="1">
                                 <tree string="Partners">