diff --git a/addons/account/wizard/__init__.py b/addons/account/wizard/__init__.py
index 7fd13486a68..c7f817dd9da 100644
--- a/addons/account/wizard/__init__.py
+++ b/addons/account/wizard/__init__.py
@@ -12,3 +12,4 @@ from . import base_document_layout
 from . import account_payment_register
 from . import account_tour_upload_bill
 from . import accrued_orders
+from . import base_partner_merge
diff --git a/addons/account/wizard/base_partner_merge.py b/addons/account/wizard/base_partner_merge.py
new file mode 100644
index 00000000000..b0618717e3c
--- /dev/null
+++ b/addons/account/wizard/base_partner_merge.py
@@ -0,0 +1,11 @@
+from odoo import models
+
+
+class MergePartnerAutomatic(models.TransientModel):
+    _inherit = 'base.partner.merge.automatic.wizard'
+
+    def _get_summable_fields(self):
+        """Add to summable fields list, fields created in this module.
+         - customer_rank and supplier_rank will have a better ranking for the merged partner
+        """
+        return super()._get_summable_fields() + ['customer_rank', 'supplier_rank']