diff --git a/package/gluon-config-mode-domain-select/check_site.lua b/package/gluon-config-mode-domain-select/check_site.lua
index 47001d28..2dd92ffb 100644
--- a/package/gluon-config-mode-domain-select/check_site.lua
+++ b/package/gluon-config-mode-domain-select/check_site.lua
@@ -1,2 +1,3 @@
 need_boolean(in_domain({'hide_domain'}), false)
-need_array_of(in_domain({'hide_domain_codes'}), table_keys(need_table(in_domain({'domain_names'}), nil, true)), false)
+valid_domain_codes = table_keys(need_table(in_domain({'domain_names'})))
+need_array_of(in_domain({'hide_domain_codes'}), valid_domain_codes, false)