diff --git a/builder/deltapacks.go b/builder/deltapacks.go
index 0e8bf30..a954c33 100644
--- a/builder/deltapacks.go
+++ b/builder/deltapacks.go
@@ -84,7 +84,7 @@ func createDeltaPacks(fromMoM *swupd.Manifest, toMoM *swupd.Manifest, printRepor
 
 				if len(info.Warnings) > 0 {
 					for _, w := range info.Warnings {
-						log.Warning(log.Mixer, "    Bundle %s: %s", b.Name, w)
+						log.Warning(log.Mixer, "Bundle %s: %s", b.Name, w)
 					}
 				}
 				report := fmt.Sprintf("  Finished delta pack for bundle %q from %d to %d\n", b.Name, b.FromVersion, b.ToVersion)
diff --git a/swupd/packs.go b/swupd/packs.go
index 06d7cf5..54567f5 100644
--- a/swupd/packs.go
+++ b/swupd/packs.go
@@ -294,7 +294,10 @@ func WritePack(w io.Writer, fromManifest, toManifest *Manifest, outputDir, chroo
 
 func copyFromDelta(tw *tar.Writer, delta *Delta) (fallback bool, err error) {
 	f, err := os.Open(delta.Path)
-	if err != nil {
+	if os.IsNotExist(err) {
+		log.Debug(log.Mixer, err.Error())
+		return true, nil
+	} else if err != nil {
 		return true, err
 	}
 	defer func() {