diff --git a/README.md b/README.md
index 801d0e3ca..49f9ca840 100644
--- a/README.md
+++ b/README.md
@@ -28,3 +28,4 @@ discussion should happen in
 
 There's plenty still to do to make Dendrite usable! We're tracking progress in a
 [project board](https://github.com/matrix-org/dendrite/projects/2).
+
diff --git a/clientapi/auth/authtypes/device.go b/clientapi/auth/authtypes/device.go
index 930ab3956..299eff036 100644
--- a/clientapi/auth/authtypes/device.go
+++ b/clientapi/auth/authtypes/device.go
@@ -26,4 +26,5 @@ type Device struct {
 	// associated with access tokens.
 	SessionID int64
 	// TODO: display name, last used timestamp, keys, etc
+	DisplayName string
 }
diff --git a/clientapi/auth/storage/devices/postgres/devices_table.go b/clientapi/auth/storage/devices/postgres/devices_table.go
index 349bf1ef7..6cae3743e 100644
--- a/clientapi/auth/storage/devices/postgres/devices_table.go
+++ b/clientapi/auth/storage/devices/postgres/devices_table.go
@@ -230,7 +230,7 @@ func (s *devicesStatements) selectDevicesByLocalpart(
 
 	for rows.Next() {
 		var dev authtypes.Device
-		err = rows.Scan(&dev.ID)
+		err = rows.Scan(&dev.ID, &dev.DisplayName)
 		if err != nil {
 			return devices, err
 		}
diff --git a/clientapi/auth/storage/devices/sqlite3/devices_table.go b/clientapi/auth/storage/devices/sqlite3/devices_table.go
index dc88890d3..f69810b7d 100644
--- a/clientapi/auth/storage/devices/sqlite3/devices_table.go
+++ b/clientapi/auth/storage/devices/sqlite3/devices_table.go
@@ -231,7 +231,7 @@ func (s *devicesStatements) selectDevicesByLocalpart(
 
 	for rows.Next() {
 		var dev authtypes.Device
-		err = rows.Scan(&dev.ID)
+		err = rows.Scan(&dev.ID, &dev.DisplayName)
 		if err != nil {
 			return devices, err
 		}
diff --git a/federationsender/queue/destinationqueue.go b/federationsender/queue/destinationqueue.go
index c0afe3be2..f412cb19b 100644
--- a/federationsender/queue/destinationqueue.go
+++ b/federationsender/queue/destinationqueue.go
@@ -102,7 +102,10 @@ func (oq *destinationQueue) next() *gomatrixserverlib.Transaction {
 		return nil
 	}
 
-	var t gomatrixserverlib.Transaction
+	t := gomatrixserverlib.Transaction{
+		PDUs: []gomatrixserverlib.Event{},
+		EDUs: []gomatrixserverlib.EDU{},
+	}
 	now := gomatrixserverlib.AsTimestamp(time.Now())
 	t.TransactionID = gomatrixserverlib.TransactionID(fmt.Sprintf("%d-%d", now, oq.sentCounter))
 	t.Origin = oq.origin