diff --git a/syncapi/internal/keychange_test.go b/syncapi/internal/keychange_test.go
index 6765fa657..baf60ef05 100644
--- a/syncapi/internal/keychange_test.go
+++ b/syncapi/internal/keychange_test.go
@@ -114,6 +114,10 @@ func (s *mockCurrentStateAPI) QuerySharedUsers(ctx context.Context, req *api.Que
 	return nil
 }
 
+func (t *mockCurrentStateAPI) QueryServerBannedFromRoom(ctx context.Context, req *api.QueryServerBannedFromRoomRequest, res *api.QueryServerBannedFromRoomResponse) error {
+	return nil
+}
+
 type wantCatchup struct {
 	hasNew  bool
 	changed []string
diff --git a/sytest-whitelist b/sytest-whitelist
index b21d45206..81b93c504 100644
--- a/sytest-whitelist
+++ b/sytest-whitelist
@@ -445,3 +445,5 @@ Banned servers cannot /invite
 Banned servers cannot get room state
 Banned servers cannot /event_auth
 Banned servers cannot get missing events
+Banned servers cannot get room state ids
+Banned servers cannot backfill