diff --git a/erpnext/crm/doctype/lead/lead.py b/erpnext/crm/doctype/lead/lead.py
index db68fe8b08b..2a588d8d13f 100644
--- a/erpnext/crm/doctype/lead/lead.py
+++ b/erpnext/crm/doctype/lead/lead.py
@@ -282,6 +282,7 @@ def _make_customer(source_name, target_doc=None, ignore_permissions=False):
 					"contact_no": "phone_1",
 					"fax": "fax_1",
 				},
+				"field_no_map": ["disabled"],
 			}
 		},
 		target_doc,