diff --git a/prepare_image.sh b/prepare_image.sh
index 19cde37..96689ce 100755
--- a/prepare_image.sh
+++ b/prepare_image.sh
@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-set -Eeuo pipefail
+set -Eeuox pipefail
 
 source env.sh