--- a/plugins/mod_announce.lua	Tue May 21 08:52:21 2019 +0200
+++ b/plugins/mod_announce.lua	Mon May 27 12:05:35 2019 +0200
@@ -44,7 +44,7 @@
 		return; -- Not an announcement
 	end
 
-	if not is_admin(stanza.attr.from) then
+	if not is_admin(stanza.attr.from, host) then
 		-- Not an admin? Not allowed!
 		module:log("warn", "Non-admin '%s' tried to send server announcement", stanza.attr.from);
 		return;