diff --git a/templates/ansible.cfg.erb b/templates/ansible.cfg.erb
index f201d33..7ee1b34 100644
--- a/templates/ansible.cfg.erb
+++ b/templates/ansible.cfg.erb
@@ -4,9 +4,9 @@ library=/usr/share/ansible
 log_path=/var/log/ansible.log
 callback_plugins=<%= @ansible_callback_plugins_path %>
 roles_path=<%= @ansible_roles_path %>
-<% if @retry_files_enabled != :undef -%>
+<% if ! [nil, :undef].include?(@retry_files_enabled) -%>
 retry_files_enabled=<%= @retry_files_enabled %>
 <% end -%>
-<% if @retry_files_save_path != :undef -%>
+<% if ! [nil, :undef].include?(@retry_files_save_path) -%>
 retry_files_save_path=<%= @retry_files_save_path %>
 <% end -%>