diff --git a/frigate/embeddings/maintainer.py b/frigate/embeddings/maintainer.py
index 2540db4f8..259839513 100644
--- a/frigate/embeddings/maintainer.py
+++ b/frigate/embeddings/maintainer.py
@@ -357,7 +357,7 @@ class EmbeddingMaintainer(threading.Thread):
             [snapshot_image]
             if event.has_snapshot and source == "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]
             )