diff --git a/erpnext/accounts/doctype/journal_entry/journal_entry.py b/erpnext/accounts/doctype/journal_entry/journal_entry.py
index 1dd1ee9..b31a304 100644
--- a/erpnext/accounts/doctype/journal_entry/journal_entry.py
+++ b/erpnext/accounts/doctype/journal_entry/journal_entry.py
@@ -326,10 +326,12 @@
 			if d.account_currency == self.company_currency:
 				d.exchange_rate = 1
 			elif not d.exchange_rate or d.exchange_rate == 1 or \
-				(d.reference_type in ("Sales Invoice", "Purchase Invoice") and d.reference_name and d.posting_date):
+				(d.reference_type in ("Sales Invoice", "Purchase Invoice") 
+				and d.reference_name and self.posting_date):
+				
 					# Modified to include the posting date for which to retreive the exchange rate
-					d.exchange_rate = get_exchange_rate(self.posting_date, d.account, d.account_currency, self.company,
-						d.reference_type, d.reference_name, d.debit, d.credit, d.exchange_rate)
+					d.exchange_rate = get_exchange_rate(self.posting_date, d.account, d.account_currency, 
+						self.company, d.reference_type, d.reference_name, d.debit, d.credit, d.exchange_rate)
 
 			if not d.exchange_rate:
 				frappe.throw(_("Row {0}: Exchange Rate is mandatory").format(d.idx))