diff --git a/cookbooks/aws-parallelcluster-slurm/libraries/update.rb b/cookbooks/aws-parallelcluster-slurm/libraries/update.rb
index c4b46a5dd6..b3c4309a78 100644
--- a/cookbooks/aws-parallelcluster-slurm/libraries/update.rb
+++ b/cookbooks/aws-parallelcluster-slurm/libraries/update.rb
@@ -85,5 +85,5 @@ def is_custom_munge_key_updated?
 end
 
 def is_login_nodes_pool_name_updated?
-  config_parameter_changed?(%w(LoginNodes Pools 0 Name))
+  config_parameter_changed?(['LoginNodes', 'Pools', 0, 'Name'])
 end