diff --git a/elements/hosts/os-refresh-config/configure.d/51-hosts b/elements/hosts/os-refresh-config/configure.d/51-hosts
index 03b510c21..a35e8922c 100755
--- a/elements/hosts/os-refresh-config/configure.d/51-hosts
+++ b/elements/hosts/os-refresh-config/configure.d/51-hosts
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-set -eux
+set -eu
 set -o pipefail
 
 write_entries() {