diff --git a/federationapi/producers/syncapi.go b/federationapi/producers/syncapi.go
index 4abd3fbe5..659ff1bcf 100644
--- a/federationapi/producers/syncapi.go
+++ b/federationapi/producers/syncapi.go
@@ -163,10 +163,10 @@ func (p *SyncAPIProducer) SendPresence(
 }
 
 func (p *SyncAPIProducer) SendDeviceListUpdate(
-	ctx context.Context, deviceListUpdate gomatrixserverlib.RawJSON, origin string,
+	ctx context.Context, deviceListUpdate gomatrixserverlib.RawJSON, origin gomatrixserverlib.ServerName,
 ) (err error) {
 	m := nats.NewMsg(p.TopicDeviceListUpdate)
-	m.Header.Set("origin", origin)
+	m.Header.Set("origin", string(origin))
 	m.Data = deviceListUpdate
 	log.Debugf("Sending device list update: %+v", m.Header)
 	_, err = p.JetStream.PublishMsg(m, nats.Context(ctx))
diff --git a/federationapi/routing/send.go b/federationapi/routing/send.go
index a9714c65a..060af676d 100644
--- a/federationapi/routing/send.go
+++ b/federationapi/routing/send.go
@@ -359,7 +359,7 @@ func (t *txnReq) processEDUs(ctx context.Context) {
 				}
 			}
 		case gomatrixserverlib.MDeviceListUpdate:
-			if err := t.producer.SendDeviceListUpdate(ctx, e.Content, e.Origin); err != nil {
+			if err := t.producer.SendDeviceListUpdate(ctx, e.Content, t.Origin); err != nil {
 				util.GetLogger(ctx).WithError(err).Error("failed to InputDeviceListUpdate")
 			}
 		case gomatrixserverlib.MReceipt: