diff --git a/event/events.go b/event/events.go
index 23769ae8..e9c5955c 100644
--- a/event/events.go
+++ b/event/events.go
@@ -144,13 +144,14 @@ type Unsigned struct {
 	RedactedBecause *Event          `json:"redacted_because,omitempty"`
 	InviteRoomState []StrippedState `json:"invite_room_state,omitempty"`
 
-	BeeperHSOrder    int64 `json:"com.beeper.hs.order,omitempty"`
-	BeeperHSSuborder int64 `json:"com.beeper.hs.suborder,omitempty"`
-	BeeperFromBackup bool  `json:"com.beeper.from_backup,omitempty"`
+	BeeperHSOrder       int64  `json:"com.beeper.hs.order,omitempty"`
+	BeeperHSSuborder    int64  `json:"com.beeper.hs.suborder,omitempty"`
+	BeeperHSOrderString string `json:"com.beeper.hs.order_string,omitempty"`
+	BeeperFromBackup    bool   `json:"com.beeper.from_backup,omitempty"`
 }
 
 func (us *Unsigned) IsEmpty() bool {
 	return us.PrevContent == nil && us.PrevSender == "" && us.ReplacesState == "" && us.Age == 0 &&
 		us.TransactionID == "" && us.RedactedBecause == nil && us.InviteRoomState == nil && us.Relations == nil &&
-		us.BeeperHSOrder == 0 && us.BeeperHSSuborder == 0
+		us.BeeperHSOrder == 0 && us.BeeperHSSuborder == 0 && us.BeeperHSOrderString == ""
 }