diff --git a/board/bsh/imx8mn-bsh-smm-s2-pro/post-build.sh b/board/bsh/imx8mn-bsh-smm-s2-pro/post-build.sh
index bf8861f6a9..9306df3f3f 100755
--- a/board/bsh/imx8mn-bsh-smm-s2-pro/post-build.sh
+++ b/board/bsh/imx8mn-bsh-smm-s2-pro/post-build.sh
@@ -1,4 +1,6 @@
 #!/bin/sh
+set -eu
+
 BOARD_DIR="$(dirname $0)"
 PARTUUID="$($HOST_DIR/bin/uuidgen)"