diff --git a/roomserver/internal/input/input_missing.go b/roomserver/internal/input/input_missing.go
index c429c654b..a7da9b06d 100644
--- a/roomserver/internal/input/input_missing.go
+++ b/roomserver/internal/input/input_missing.go
@@ -35,7 +35,7 @@ func (p *parsedRespState) Events() []*gomatrixserverlib.Event {
 	for _, event := range eventsByID {
 		allEvents = append(allEvents, event)
 	}
-	return allEvents
+	return gomatrixserverlib.ReverseTopologicalOrdering(allEvents, gomatrixserverlib.TopologicalOrderByAuthEvents)
 }
 
 type missingStateReq struct {