diff --git a/src/hyperion/experiment_plans/oav_snapshot_plan.py b/src/hyperion/experiment_plans/oav_snapshot_plan.py
index 1615d55d6..0a6167a38 100644
--- a/src/hyperion/experiment_plans/oav_snapshot_plan.py
+++ b/src/hyperion/experiment_plans/oav_snapshot_plan.py
@@ -56,6 +56,9 @@ def oav_snapshot_plan(
     oav_parameters: OAVParameters,
     wait: bool = True,
 ) -> MsgGenerator:
+    omegas = parameters.snapshot_omegas_deg
+    if not omegas:
+        return
     yield from _setup_oav(composite, parameters, oav_parameters)
-    for omega in parameters.snapshot_omegas_deg:
+    for omega in omegas:
         yield from _take_oav_snapshot(composite, parameters, omega)
diff --git a/tests/unit_tests/external_interaction/callbacks/rotation/test_ispyb_callback.py b/tests/unit_tests/external_interaction/callbacks/rotation/test_ispyb_callback.py
index 0096b76f9..9a47f2c3c 100644
--- a/tests/unit_tests/external_interaction/callbacks/rotation/test_ispyb_callback.py
+++ b/tests/unit_tests/external_interaction/callbacks/rotation/test_ispyb_callback.py
@@ -236,7 +236,7 @@ def test_oav_rotation_snapshot_triggered_event(
     ]:
         mx.upsert_data_collection.reset_mock()
         event_doc = dict(TestData.test_event_document_oav_rotation_snapshot)
-        event_doc["data"]["oav_snapshot_last_saved_path"] = snapshot["filename"]
+        event_doc["data"]["oav_snapshot_last_saved_path"] = snapshot["filename"]  # type: ignore
         callback.activity_gated_event(
             TestData.test_event_document_oav_rotation_snapshot
         )