diff --git a/04-secrets/run.sh b/04-secrets/run.sh
index d55a612..7a5271e 100755
--- a/04-secrets/run.sh
+++ b/04-secrets/run.sh
@@ -16,7 +16,7 @@ nm_pass="$(asks password)"
 nm_dom="$(ask 'domain (blank = none)')"
 {
   printf 'username=%s\npassword=%s\n' "$nm_user" "$nm_pass"
-  [ -n "$nm_dom" ] && printf 'domain=%s\n' "$nm_dom"
+  if [ -n "$nm_dom" ]; then printf 'domain=%s\n' "$nm_dom"; fi
 } | install -Dm600 /dev/stdin /etc/nase.meow.credentials
 echo "  wrote /etc/nase.meow.credentials (600)"