diff -r e89b57d0d80a -r 2abbb01cd756 util/pubsub.lua
--- a/util/pubsub.lua	Tue Oct 17 05:30:09 2017 +0200
+++ b/util/pubsub.lua	Tue Oct 17 05:47:06 2017 +0200
@@ -5,13 +5,14 @@
 local service_mt = { __index = service };
 
 local default_config = { __index = {
-	itemstore = function (config, _) return cache.new(tonumber(config["pubsub#max_items"])) end;
+	itemstore = function (config, _) return cache.new(config["max_items"]) end;
 	broadcaster = function () end;
 	get_affiliation = function () end;
 	capabilities = {};
 } };
 local default_node_config = { __index = {
-	["pubsub#max_items"] = "20";
+	["persist_items"] = false;
+	["max_items"] = 20;
 } };
 
 local function new(config)