diff --git a/erpnext/accounts/report/invalid_ledger_entries/invalid_ledger_entries.py b/erpnext/accounts/report/invalid_ledger_entries/invalid_ledger_entries.py
index 33fda705cf2..2ba0a7fb4ce 100644
--- a/erpnext/accounts/report/invalid_ledger_entries/invalid_ledger_entries.py
+++ b/erpnext/accounts/report/invalid_ledger_entries/invalid_ledger_entries.py
@@ -84,7 +84,8 @@ def build_query_filters(filters: dict | None = None) -> list:
 	qb_filters = []
 	if filters:
 		if filters.account:
-			qb_filters.append(qb.Field("account").isin(filters.account))
+			accounts = filters.account if isinstance(filters.account, list | tuple) else [filters.account]
+			qb_filters.append(qb.Field("account").isin(accounts))
 
 		if filters.voucher_no:
 			qb_filters.append(qb.Field("voucher_no").eq(filters.voucher_no))
diff --git a/erpnext/accounts/report/invalid_ledger_entries/test_invalid_ledger_entries.py b/erpnext/accounts/report/invalid_ledger_entries/test_invalid_ledger_entries.py
index 3ce9f48fff3..9a193dc0779 100644
--- a/erpnext/accounts/report/invalid_ledger_entries/test_invalid_ledger_entries.py
+++ b/erpnext/accounts/report/invalid_ledger_entries/test_invalid_ledger_entries.py
@@ -109,6 +109,14 @@ class TestInvalidLedgerEntries(ERPNextTestSuite):
 		flagged = {row.get("voucher_no") for row in self.run_report(account=[unrelated])}
 		self.assertNotIn(orphan.name, flagged)
 
+	def test_account_filter_accepts_a_scalar(self):
+		"""A scalar (non-list) account filter must not crash the query."""
+		orphan = self.make_submitted_jv()
+		frappe.db.set_value("Journal Entry", orphan.name, "docstatus", 2, update_modified=False)
+
+		flagged = {row.get("voucher_no") for row in self.run_report(account=self.debit_account)}
+		self.assertIn(orphan.name, flagged)
+
 	def test_period_filter_excludes_out_of_range(self):
 		"""Vouchers posted outside the from/to window must not be scanned."""
 		orphan = self.make_submitted_jv()