diff --git a/pkg/mirror/mirror.go b/pkg/mirror/mirror.go
index 04508eb..3abf107 100644
--- a/pkg/mirror/mirror.go
+++ b/pkg/mirror/mirror.go
@@ -48,7 +48,9 @@ func PushToRegistry(image any, imageName string) error {
 			return fmt.Errorf("failed to push image index %s: %w", imageName, err)
 		}
 	default:
-		return fmt.Errorf("unknown image type: %T", image)
+		if err := remote.WriteIndex(ref, image.(v1.ImageIndex), remote.WithAuth(auth)); err != nil {
+			return fmt.Errorf("failed to push image index %s: %w", imageName, err)
+		}
 	}
 	return nil
 }
@@ -76,7 +78,10 @@ func SaveAsOCILayout(image any, path string) error {
 			return fmt.Errorf("failed to create index: %w", err)
 		}
 	default:
-		return fmt.Errorf("unknown image type: %T", image)
+		_, err := layout.Write(path, image.(v1.ImageIndex))
+		if err != nil {
+			return fmt.Errorf("failed to create index: %w", err)
+		}
 	}
 	return nil
 }