diff --git a/container/entrypoint.sh b/container/entrypoint.sh
index 775fc8a2a..8fbdb6947 100755
--- a/container/entrypoint.sh
+++ b/container/entrypoint.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 # shellcheck shell=dash
-set -eu
+set -u
 
 check_file() {
     local target="$1"