--- a/plugins/adhoc/adhoc.lib.lua	Thu Oct 01 15:08:58 2020 +0100
+++ b/plugins/adhoc/adhoc.lib.lua	Wed Sep 30 09:50:33 2020 +0100
@@ -21,7 +21,13 @@
 end
 
 function _M.new(name, node, handler, permission)
-	return { name = name, node = node, handler = handler, cmdtag = _cmdtag, permission = (permission or "user") };
+	if not permission then
+		error "adhoc.new() expects a permission argument, none given"
+	end
+	if permission == "user" then
+		error "the permission mode 'user' has been renamed 'any', please update your code"
+	end
+	return { name = name, node = node, handler = handler, cmdtag = _cmdtag, permission = permission };
 end
 
 function _M.handle_cmd(command, origin, stanza)