diff --git a/synapse/storage/databases/main/events_worker.py b/synapse/storage/databases/main/events_worker.py
index 96c9ab215881..98950af908eb 100644
--- a/synapse/storage/databases/main/events_worker.py
+++ b/synapse/storage/databases/main/events_worker.py
@@ -1471,6 +1471,8 @@ async def _fetch_event_ids_and_get_outstanding_redactions(
             await self._get_event_cache.set((event_id,), cache_entry)
             result_map[event_id] = cache_entry
 
+            self.add_to_event_metadata(event_id, cache_entry)
+
             if not redacted_event:
                 # We only cache references to unredacted events.
                 self._event_ref[event_id] = original_ev