diff --git a/frappe/core/doctype/document_naming_settings/document_naming_settings.py b/frappe/core/doctype/document_naming_settings/document_naming_settings.py
index 13e1e4aeba..b3f1ad0e97 100644
--- a/frappe/core/doctype/document_naming_settings/document_naming_settings.py
+++ b/frappe/core/doctype/document_naming_settings/document_naming_settings.py
@@ -167,9 +167,13 @@ class DocumentNamingSettings(Document):
 			)
 
 	@frappe.whitelist()
-	def get_options(self, arg=None):
-		if frappe.get_meta(arg or self.transaction_type).get_field("naming_series"):
-			return frappe.get_meta(arg or self.transaction_type).get_field("naming_series").options
+	def get_options(self, doctype=None):
+		doctype = doctype or self.transaction_type
+		if not doctype:
+			return
+
+		if frappe.get_meta(doctype or self.transaction_type).get_field("naming_series"):
+			return frappe.get_meta(doctype or self.transaction_type).get_field("naming_series").options
 
 	@frappe.whitelist()
 	def get_current(self, arg=None):
diff --git a/frappe/core/doctype/document_naming_settings/test_document_naming_settings.py b/frappe/core/doctype/document_naming_settings/test_document_naming_settings.py
index 13da12fa19..f57d7b06aa 100644
--- a/frappe/core/doctype/document_naming_settings/test_document_naming_settings.py
+++ b/frappe/core/doctype/document_naming_settings/test_document_naming_settings.py
@@ -10,7 +10,7 @@ from frappe.tests.utils import FrappeTestCase
 
 class TestNamingSeries(FrappeTestCase):
 	def setUp(self):
-		self.ns: DocumentNamingSettings = frappe.get_doc("Naming Series Settings")
+		self.ns: DocumentNamingSettings = frappe.get_doc("Document Naming Settings")
 
 	def tearDown(self):
 		frappe.db.rollback()