diff --git a/checkbox-ng/plainbox/impl/exporter/test_xlsx.py b/checkbox-ng/plainbox/impl/exporter/test_xlsx.py
index f1a0c8732a..e232509f65 100644
--- a/checkbox-ng/plainbox/impl/exporter/test_xlsx.py
+++ b/checkbox-ng/plainbox/impl/exporter/test_xlsx.py
@@ -88,6 +88,11 @@ def test_write_tp_export(self):
         unit.Meta.name = "category"
 
         state = SessionState(job_list)
+        data["manager"].default_device_context.state = state
+        XLSXSessionStateExporter.write_tp_export(self_mock, data)
+        self_mock.worksheet4.write_row.assert_called_with(
+            ANY, 0, ["test", "", ""], ANY
+        )
         state.update_desired_job_list(job_list)
         state.unit_list.append(unit)