diff --git a/scripts/telegram.coffee b/scripts/telegram.coffee
index 78ea317..2b31881 100644
--- a/scripts/telegram.coffee
+++ b/scripts/telegram.coffee
@@ -76,14 +76,18 @@ module.exports = (robot) ->
       res.send (res.random intro) + ':\n' + (list.map (i) -> '* '+i).join '\n'
 
   robot.respond /(mi )?invit(i|ami) (in|nel gruppo) (.+)\??/, (res) ->
-    nope = ['dove?', 'mai sentito questo?', 'invita anche me magari']
-    ok   = ['provvedo', 'ok', 'certo', 'va bene']
-    done = ['fatto', 'ecco qui', 'ecco']
+    denied = ['BZBZ ADMIN-NOT-DETECTED', 'BZBZ IS-NOT-AUTHORIZED', 'BZBZ ACCESS-DENIED']
+    nope   = ['ahahah NO', 'mai sentito questo?', 'invita anche me magari']
+    ok     = ['provvedo subito', 'ok', 'certo', 'va bene']
+    done   = ['fatto', 'ecco qui', 'ecco']
     group_list (list) ->
       chat = res.match[4]
       if not chat in list
         res.send res.random nope
         return
+      if chat is process.env['ADMIN_ROOM_NAME']
+        res.send res.random denied
+        return
       res.send res.random ok
       run_command "chat_add_user #{chat} #{res.message.user.name}"
       res.send res.random done