diff --git a/tests/integration/test_code.py b/tests/integration/test_code.py
index 299193dd..73808349 100644
--- a/tests/integration/test_code.py
+++ b/tests/integration/test_code.py
@@ -35,6 +35,7 @@
     reason="Graham doesn't use a lustre filesystem for $HOME.",
     strict=True,
 )
+@pytest.mark.asyncio
 async def test_check_disk_quota(
     login_node_v2: RemoteV2,
     capsys: pytest.LogCaptureFixture,