diff --git a/rootf-kernel/arch-rootfs.sh b/rootf-kernel/arch-rootfs.sh
index 026162d..7f9313c 100755
--- a/rootf-kernel/arch-rootfs.sh
+++ b/rootf-kernel/arch-rootfs.sh
@@ -2,7 +2,7 @@
 
 # inspired by https://github.com/oraoto/archlinux-firecracker/blob/master/scripts/build-arch-rootfs.sh
 
-set -x
+set -ex
 
 DISK_SIZE=10G
 DISK_FILE=../out/arch-rootfs.ext4