diff --git a/syncapi/storage/postgres/output_room_events_table.go b/syncapi/storage/postgres/output_room_events_table.go
index 28668de0..71241828 100644
--- a/syncapi/storage/postgres/output_room_events_table.go
+++ b/syncapi/storage/postgres/output_room_events_table.go
@@ -75,7 +75,7 @@ const insertEventSQL = "" +
 	"INSERT INTO syncapi_output_room_events (" +
 	"room_id, event_id, headered_event_json, type, sender, contains_url, add_state_ids, remove_state_ids, session_id, transaction_id, exclude_from_sync" +
 	") VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11) " +
-	"ON CONFLICT ON CONSTRAINT syncapi_event_id_idx DO UPDATE SET exclude_from_sync = $11 " +
+	"ON CONFLICT ON CONSTRAINT syncapi_event_id_idx DO UPDATE SET exclude_from_sync = $11 WHERE $11 == false" +
 	"RETURNING id"
 
 const selectEventsSQL = "" +
diff --git a/syncapi/storage/sqlite3/output_room_events_table.go b/syncapi/storage/sqlite3/output_room_events_table.go
index 3c70a499..e9cad8dc 100644
--- a/syncapi/storage/sqlite3/output_room_events_table.go
+++ b/syncapi/storage/sqlite3/output_room_events_table.go
@@ -54,7 +54,7 @@ const insertEventSQL = "" +
 	"INSERT INTO syncapi_output_room_events (" +
 	"id, room_id, event_id, headered_event_json, type, sender, contains_url, add_state_ids, remove_state_ids, session_id, transaction_id, exclude_from_sync" +
 	") VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12) " +
-	"ON CONFLICT (event_id) DO UPDATE SET exclude_from_sync = $13"
+	"ON CONFLICT (event_id) DO UPDATE SET exclude_from_sync = $13 WHERE $14 == false"
 
 const selectEventsSQL = "" +
 	"SELECT event_id, id, headered_event_json, session_id, exclude_from_sync, transaction_id FROM syncapi_output_room_events WHERE event_id = $1"
@@ -303,6 +303,7 @@ func (s *outputRoomEventsStatements) InsertEvent(
 		txnID,
 		excludeFromSync,
 		excludeFromSync,
+		excludeFromSync,
 	)
 	return streamPos, err
 }