1 files changed, 1 insertions, 0 deletions
diff --git a/synapse/storage/database.py b/synapse/storage/database.py
index a78d68a9d7..e8c63cf567 100644
--- a/synapse/storage/database.py
+++ b/synapse/storage/database.py
@@ -92,6 +92,7 @@ UNIQUE_INDEX_BACKGROUND_UPDATES = {
     "event_search": "event_search_event_id_idx",
     "local_media_repository_thumbnails": "local_media_repository_thumbnails_method_idx",
     "remote_media_cache_thumbnails": "remote_media_repository_thumbnails_method_idx",
+    "event_push_summary": "event_push_summary_unique_index",
 }