minor fix in payment entry
diff --git a/erpnext/accounts/doctype/payment_entry/payment_entry.py b/erpnext/accounts/doctype/payment_entry/payment_entry.py
index 6c04cf5..175ebda 100644
--- a/erpnext/accounts/doctype/payment_entry/payment_entry.py
+++ b/erpnext/accounts/doctype/payment_entry/payment_entry.py
@@ -569,10 +569,9 @@
 @frappe.whitelist()
 def get_reference_details(reference_doctype, reference_name, party_account_currency):
 	total_amount = outstanding_amount = exchange_rate = None
+	ref_doc = frappe.get_doc(reference_doctype, reference_name)
 	
 	if reference_doctype != "Journal Entry":
-		ref_doc = frappe.get_doc(reference_doctype, reference_name)
-
 		if party_account_currency == ref_doc.company_currency:
 			total_amount = ref_doc.base_grand_total
 			exchange_rate = 1