--- a/plugins/mod_disco.lua	Sun Mar 12 12:52:55 2017 +0100
+++ b/plugins/mod_disco.lua	Thu Mar 16 23:49:27 2017 +0100
@@ -13,7 +13,7 @@
 local st = require "util.stanza"
 local calculate_hash = require "util.caps".calculate_hash;
 
-local disco_items = module:get_option("disco_items") or {};
+local disco_items = module:get_option_array("disco_items", {})
 do -- validate disco_items
 	for _, item in ipairs(disco_items) do
 		local err;