diff --git a/site-cookbooks/kosmos_postgresql/resources/server.rb b/site-cookbooks/kosmos_postgresql/resources/server.rb
index 5d5fb1c..d5b38da 100644
--- a/site-cookbooks/kosmos_postgresql/resources/server.rb
+++ b/site-cookbooks/kosmos_postgresql/resources/server.rb
@@ -54,11 +54,11 @@ action :create do
     unix_socket_directories: "/var/run/postgresql",
     dynamic_shared_memory_type: "posix",
     timezone: "UTC", # default is GMT
-    listen_addresses: "0.0.0.0"
+    listen_addresses: "0.0.0.0",
+    promote_trigger_file: "#{postgresql_data_dir}/failover.trigger",
+    wal_keep_segments: 256
   }
 
-  additional_config[:promote_trigger_file] = "#{postgresql_data_dir}/failover.trigger"
-
   postgresql_server_conf "main" do
     version postgresql_version
     additional_config additional_config