diff --git a/make-stretchoid.sh b/make-stretchoid.sh
index 1697c30..581dc54 100755
--- a/make-stretchoid.sh
+++ b/make-stretchoid.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-set -eu
+set -eux
 
 REV="v-$(date --iso-8601=seconds)"