diff --git a/erpnext/patches/v12_0/add_company_link_to_einvoice_settings.py b/erpnext/patches/v12_0/add_company_link_to_einvoice_settings.py
index fe284e8..3b560fd 100644
--- a/erpnext/patches/v12_0/add_company_link_to_einvoice_settings.py
+++ b/erpnext/patches/v12_0/add_company_link_to_einvoice_settings.py
@@ -12,5 +12,5 @@
 			select dl.link_name from `tabAddress` a, `tabDynamic Link` dl
 			where a.gstin = %s and dl.parent = a.name and dl.link_doctype = 'Company'
 		""", (creds.get('gstin')))
-		if company_name[0]:
+		if company_name and len(company_name) == 1:
 			frappe.db.set_value('E Invoice User', creds.get('name'), 'company', company_name[0][0])
\ No newline at end of file