diff --git a/cmd/dendritejs/main.go b/cmd/dendritejs/main.go
index a8791de67..214c887ed 100644
--- a/cmd/dendritejs/main.go
+++ b/cmd/dendritejs/main.go
@@ -90,6 +90,10 @@ func main() {
 	cfg.Database.RoomServer = "file:dendritejs_roomserver.db"
 	cfg.Database.ServerKey = "file:dendritejs_serverkey.db"
 	cfg.Database.SyncAPI = "file:dendritejs_syncapi.db"
+	cfg.Kafka.Topics.UserUpdates = "user_updates"
+	cfg.Kafka.Topics.OutputTypingEvent = "output_typing_event"
+	cfg.Kafka.Topics.OutputClientData = "output_client_data"
+	cfg.Kafka.Topics.OutputRoomEvent = "output_room_event"
 	cfg.Matrix.TrustedIDServers = []string{
 		"matrix.org", "vector.im",
 	}