diff --git a/erpnext/regional/doctype/gstr_3b_report/gstr_3b_report.py b/erpnext/regional/doctype/gstr_3b_report/gstr_3b_report.py
index 4e971aba302..cbb7f45d835 100644
--- a/erpnext/regional/doctype/gstr_3b_report/gstr_3b_report.py
+++ b/erpnext/regional/doctype/gstr_3b_report/gstr_3b_report.py
@@ -8,7 +8,7 @@ from frappe import _
 from frappe.model.document import Document
 import json
 from six import iteritems
-from frappe.utils import flt, getdate
+from frappe.utils import flt, getdate, cstr
 from erpnext.regional.india import state_numbers
 
 class GSTR3BReport(Document):
@@ -306,27 +306,26 @@ class GSTR3BReport(Document):
 		inter_state_supply_details = {}
 
 		for d in inter_state_supply_tax:
-			if d.name:
-				inter_state_supply_tax_mapping.setdefault(d.name, {
-					'place_of_supply': d.place_of_supply,
-					'taxable_value': d.net_total,
-					'camt': 0.0,
-					'samt': 0.0,
-					'iamt': 0.0,
-					'csamt': 0.0
-				})
+			inter_state_supply_tax_mapping.setdefault(cstr(d.name), {
+				'place_of_supply': d.place_of_supply,
+				'taxable_value': d.net_total,
+				'camt': 0.0,
+				'samt': 0.0,
+				'iamt': 0.0,
+				'csamt': 0.0
+			})
 
-				if d.account_head in [d.cgst_account for d in self.account_heads]:
-					inter_state_supply_tax_mapping[d.name]['camt'] += d.tax_amount
+			if d.account_head in [d.cgst_account for d in self.account_heads]:
+				inter_state_supply_tax_mapping[cstr(d.name)]['camt'] += d.tax_amount
 
-				if d.account_head in [d.sgst_account for d in self.account_heads]:
-					inter_state_supply_tax_mapping[d.name]['samt'] += d.tax_amount
+			if d.account_head in [d.sgst_account for d in self.account_heads]:
+				inter_state_supply_tax_mapping[cstr(d.name)]['samt'] += d.tax_amount
 
-				if d.account_head in [d.igst_account for d in self.account_heads]:
-					inter_state_supply_tax_mapping[d.name]['iamt'] += d.tax_amount
+			if d.account_head in [d.igst_account for d in self.account_heads]:
+				inter_state_supply_tax_mapping[cstr(d.name)]['iamt'] += d.tax_amount
 
-				if d.account_head in [d.cess_account for d in self.account_heads]:
-					inter_state_supply_tax_mapping[d.name]['csamt'] += d.tax_amount
+			if d.account_head in [d.cess_account for d in self.account_heads]:
+				inter_state_supply_tax_mapping[cstr(d.name)]['csamt'] += d.tax_amount
 
 		for key, value in iteritems(inter_state_supply_tax_mapping):
 			if d.place_of_supply: