--- a/plugins/mod_mam/mod_mam.lua	Tue Dec 24 01:00:35 2019 +0100
+++ b/plugins/mod_mam/mod_mam.lua	Tue Dec 24 01:01:05 2019 +0100
@@ -297,7 +297,7 @@
 		log("debug", "Archiving stanza: %s", stanza:top_tag());
 
 		-- And stash it
-		local ok = archive:append(store_user, nil, clone_for_storage, time_now(), with);
+		local ok, err = archive:append(store_user, nil, clone_for_storage, time_now(), with);
 		if ok then
 			local clone_for_other_handlers = st.clone(stanza);
 			local id = ok;