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-rw-r--r--synapse/storage/databases/main/event_federation.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/synapse/storage/databases/main/event_federation.py b/synapse/storage/databases/main/event_federation.py
index dcfe8caf47..562dcbe94d 100644
--- a/synapse/storage/databases/main/event_federation.py
+++ b/synapse/storage/databases/main/event_federation.py
@@ -1057,7 +1057,7 @@ class EventFederationWorkerStore(SignatureWorkerStore, EventsWorkerStore, SQLBas
             INNER JOIN batch_events AS c
             ON i.next_batch_id = c.batch_id
             /* Get the depth of the batch start event from the events table */
-            INNER JOIN events AS e USING (event_id)
+            INNER JOIN events AS e ON c.event_id = e.event_id
             /* Find an insertion event which matches the given event_id */
             WHERE i.event_id = ?
             LIMIT ?