diff --git a/erpnext/accounts/doctype/sales_invoice/test_sales_invoice.py b/erpnext/accounts/doctype/sales_invoice/test_sales_invoice.py
index a2819af..88b54fe 100644
--- a/erpnext/accounts/doctype/sales_invoice/test_sales_invoice.py
+++ b/erpnext/accounts/doctype/sales_invoice/test_sales_invoice.py
@@ -1892,7 +1892,7 @@
 
 		si.submit()
 
-		data = get_ewb_data("Sales Invoice", si.name)
+		data = get_ewb_data("Sales Invoice", [si.name])
 
 		self.assertEqual(data['version'], '1.0.1118')
 		self.assertEqual(data['billLists'][0]['fromGstin'], '27AAECE4835E1ZR')
diff --git a/erpnext/regional/india/utils.py b/erpnext/regional/india/utils.py
index badb4b4..094f010 100644
--- a/erpnext/regional/india/utils.py
+++ b/erpnext/regional/india/utils.py
@@ -469,7 +469,7 @@
 	else:
 		doc_name = data['docname']
 
-	frappe.local.response.filename = '{0}_e-WayBill_Data_{1}.json'.format(data['docname'], frappe.utils.random_string(5))
+	frappe.local.response.filename = '{0}_e-WayBill_Data_{1}.json'.format(doc_name, frappe.utils.random_string(5))
 
 @frappe.whitelist()
 def get_gstins_for_company(company):