--- a/mod_muc_rtbl/mod_muc_rtbl.lua	Mon Dec 06 12:27:16 2021 +0000
+++ b/mod_muc_rtbl/mod_muc_rtbl.lua	Mon Dec 06 18:19:19 2021 +0100
@@ -92,6 +92,8 @@
 module:hook("iq-result/host/rtbl-request", update_list);
 
 module:hook("muc-occupant-pre-join", function (event)
+	if next(banned_hashes) == nil then return end
+
 	local from_bare = jid.bare(event.stanza.attr.from);
 
 	local affiliation = event.room:get_affiliation(from_bare);