1 files changed, 2 insertions, 2 deletions
diff --git a/synapse/storage/events.py b/synapse/storage/events.py
index a2e87c27ce..9fe2effb4b 100644
--- a/synapse/storage/events.py
+++ b/synapse/storage/events.py
@@ -188,12 +188,12 @@ class EventsStore(SQLBaseStore):
                 )
 
                 sql = (
-                    "UPDATE events SET outlier = 0"
+                    "UPDATE events SET outlier = ?"
                     " WHERE event_id = ?"
                 )
                 txn.execute(
                     sql,
-                    (event.event_id,)
+                    (False, event.event_id,)
                 )
             return