diff --git a/docker_image.go b/docker_image.go
index 0e3414d..dfc63c1 100644
--- a/docker_image.go
+++ b/docker_image.go
@@ -81,7 +81,7 @@ func (i DockerImage) AsRunScript(w io.Writer) error {
 }
 
 func NewImage(ctx context.Context, tag string, imageTmpPath string) (*image, error) {
-	if err := os.MkdirAll(imageTmpPath, perm); err != nil {
+	if err := os.MkdirAll(imageTmpPath, os.ModePerm); err != nil {
 		return nil, err
 	}
 	// save the image to a tar file to avoid loading it in memory
@@ -110,6 +110,9 @@ type image struct {
 }
 
 func (i image) Flatten(ctx context.Context, out string) error {
+	if err := os.MkdirAll(out, os.ModePerm); err != nil {
+		return err
+	}
 	tar := filepath.Join(i.dir, "img.tar")
 	f, err := os.Create(tar)
 	if err != nil {
diff --git a/docker_image_test.go b/docker_image_test.go
index e8a6265..1ecc726 100644
--- a/docker_image_test.go
+++ b/docker_image_test.go
@@ -134,7 +134,7 @@ RUN rm -rf /etc/apk
 	)
 	exec.SetDebug(true)
 	tmp := filepath.Join(os.TempDir(), "d2vm-tests", "image-flatten")
-	require.NoError(t, os.MkdirAll(tmp, perm))
+	require.NoError(t, os.MkdirAll(tmp, os.ModePerm))
 	defer os.RemoveAll(tmp)
 
 	require.NoError(t, os.WriteFile(filepath.Join(tmp, "hostname"), []byte("d2vm-flatten-test"), perm))