diff --git a/tests/integration/test_snmp_poll.py b/tests/integration/test_snmp_poll.py
index f5d42e4..d33d941 100644
--- a/tests/integration/test_snmp_poll.py
+++ b/tests/integration/test_snmp_poll.py
@@ -65,9 +65,9 @@ def test_a_poll_records_why_a_device_is_silent_and_what_another_answered(app):
         await asyncio.sleep(1.1)
         await scheduler._do_poll(app, poll=fake_poll)
         async with app.db_sessionmaker() as s:
-            rows = {d.name: d for d in (await s.execute(
-                select(SnmpDevice).where(SnmpDevice.name.in_([up, down])))).scalars()}
             async with s.begin():
+                rows = {d.name: d for d in (await s.execute(
+                    select(SnmpDevice).where(SnmpDevice.name.in_([up, down])))).scalars()}
                 for d in rows.values():
                     await s.delete(d)
         return first, await _latest(app, up), rows