diff --git a/username_restrictions/init.lua b/username_restrictions/init.lua
index cac9c2c..8115a70 100644
--- a/username_restrictions/init.lua
+++ b/username_restrictions/init.lua
@@ -1,27 +1,32 @@
 -- twi_mods/username_restrictions/init.lua
 -- Ban some usernames
 -- Copyright (C) 2024  1F616EMO
 -- SPDX-License-Identifier: LGPL-2.1-or-later
 
 local banned_parts = {}
 
 for _, part in ipairs({"admin", "moderator"}) do
     banned_parts[part] = antispoof.normalize(part)
 end
 
 local auth
 minetest.register_on_prejoinplayer(function(name)
     if name == "singleplayer" or name == minetest.settings:get("name") then return end
     auth = auth or minetest.get_auth_handler()
     if not auth.get_auth(name) then
+        if string.find(name, "L+O+L+") then
+            -- As unclear as possible yet give some useful message
+            return "This username is banned."
+        end
+
         local normalized_name = antispoof.normalize(name)
         for orig_part, norm_part in pairs(banned_parts) do
             if string.find(normalized_name, norm_part) then
                 return string.format(
                     "Invalid username %s: Username cannt conain \"%s\"",
                     name, orig_part
                 )
             end
         end
     end
 end)
\ No newline at end of file