1 files changed, 2 insertions, 2 deletions
diff --git a/synapse/storage/databases/main/events_bg_updates.py b/synapse/storage/databases/main/events_bg_updates.py
index 6fcb2b8353..1afc59fafb 100644
--- a/synapse/storage/databases/main/events_bg_updates.py
+++ b/synapse/storage/databases/main/events_bg_updates.py
@@ -490,7 +490,7 @@ class EventsBackgroundUpdatesStore(SQLBaseStore):
                 txn=txn,
                 table="event_forward_extremities",
                 column="event_id",
-                iterable=to_delete,
+                values=to_delete,
                 keyvalues={},
             )
 
@@ -520,7 +520,7 @@ class EventsBackgroundUpdatesStore(SQLBaseStore):
                 txn=txn,
                 table="_extremities_to_check",
                 column="event_id",
-                iterable=original_set,
+                values=original_set,
                 keyvalues={},
             )