diff --git a/frigate/embeddings/maintainer.py b/frigate/embeddings/maintainer.py
index 2598395134..86dbe94570 100644
--- a/frigate/embeddings/maintainer.py
+++ b/frigate/embeddings/maintainer.py
@@ -221,7 +221,7 @@ def _process_finalized(self) -> None:
                         [snapshot_image]
                         if event.has_snapshot and camera_config.genai.use_snapshot
                         else (
-                            [thumbnail for data in self.tracked_events[event_id]]
+                            [data["thumbnail"] for data in self.tracked_events[event_id]]
                             if len(self.tracked_events.get(event_id, [])) > 0
                             else [thumbnail]
                         )