diff --git a/backend/pashub_fetcher/tests/test_pashub_service.py b/backend/pashub_fetcher/tests/test_pashub_service.py
index 1d6d167f..cf1c489a 100644
--- a/backend/pashub_fetcher/tests/test_pashub_service.py
+++ b/backend/pashub_fetcher/tests/test_pashub_service.py
@@ -333,6 +333,31 @@ def test_run_persists_coordination_hub_file_source_when_pas_401_on_uprn_lookup()
     assert added[0].file_source == FileSourceEnum.COORDINATION_HUB.value
 
 
+def test_run_persists_coordination_hub_file_source_when_pas_401_on_file_listing() -> None:
+    pas_client = MagicMock(spec=PashubClient)
+    pas_client.get_core_evidence_files_by_job_id.side_effect = UnauthorizedError()
+
+    coord_client = MagicMock(spec=PashubClient)
+    coord_client.get_core_evidence_files_by_job_id.return_value = ["/tmp/a.pdf"]
+
+    factory = MagicMock(return_value=coord_client)
+    fake_session = MagicMock()
+
+    service = make_service(pashub_client=pas_client, coordination_client_factory=factory)
+
+    with (
+        patch("backend.pashub_fetcher.pashub_service.upload_file_to_s3"),
+        patch("backend.pashub_fetcher.pashub_service.db_session") as mock_db,
+        patch("backend.pashub_fetcher.pashub_service.os.remove"),
+    ):
+        mock_db.return_value.__enter__.return_value = fake_session
+        service.run(make_request(uprn="12345"))
+
+    fake_session.add_all.assert_called_once()
+    added: list[Any] = fake_session.add_all.call_args[0][0]
+    assert added[0].file_source == FileSourceEnum.COORDINATION_HUB.value
+
+
 def test_run_warns_and_continues_when_site_notes_parsing_fails() -> None:
     mock_client = MagicMock(spec=PashubClient)
     mock_client.get_uprn_by_job_id.return_value = None