diff --git a/erpnext/crm/doctype/lead/lead.py b/erpnext/crm/doctype/lead/lead.py
index 5d3437c4a88..6443928bf66 100644
--- a/erpnext/crm/doctype/lead/lead.py
+++ b/erpnext/crm/doctype/lead/lead.py
@@ -285,6 +285,7 @@ def _make_customer(source_name, target_doc=None, ignore_permissions=False):
 					"contact_no": "phone_1",
 					"fax": "fax_1",
 				},
+				"field_no_map": ["disabled"],
 			}
 		},
 		target_doc,