diff --git a/packer/rpc/ui.go b/packer/rpc/ui.go
index c1ed2435f..afd73fd38 100644
--- a/packer/rpc/ui.go
+++ b/packer/rpc/ui.go
@@ -79,7 +79,7 @@ func (u *Ui) ProgressBar() packer.ProgressBar {
 }
 
 type RemoteProgressBarClient struct {
-	id     string
+	id     string // TODO(azr): don't need an id any more since bar is a singleton
 	client *rpc.Client
 }
 
diff --git a/provisioner/file/provisioner.go b/provisioner/file/provisioner.go
index 474e87596..7ae675f26 100644
--- a/provisioner/file/provisioner.go
+++ b/provisioner/file/provisioner.go
@@ -128,7 +128,7 @@ func (p *Provisioner) ProvisionDownload(ui packer.Ui, comm packer.Communicator)
 
 		// Get a default progress bar
 		pb := packer.NoopProgressBar{}
-		pb.Start(0)
+		pb.Start(0) // TODO: find size ? Remove ?
 		defer pb.Finish()
 
 		// Create MultiWriter for the current progress