diff --git a/erpnext/accounts/doctype/payment_entry/payment_entry.py b/erpnext/accounts/doctype/payment_entry/payment_entry.py
index 74737971fca..b0caa52bb24 100644
--- a/erpnext/accounts/doctype/payment_entry/payment_entry.py
+++ b/erpnext/accounts/doctype/payment_entry/payment_entry.py
@@ -642,7 +642,7 @@ class PaymentEntry(AccountsController):
 			if d.reference_doctype not in valid_reference_doctypes:
 				frappe.throw(
 					_("Reference Doctype must be one of {0}").format(
-						comma_or(_(d) for d in valid_reference_doctypes)
+						comma_or([_(d) for d in valid_reference_doctypes])
 					)
 				)