diff --git a/skynet/frontend/chatbot/__init__.py b/skynet/frontend/chatbot/__init__.py
index ac60eee..106ac7f 100644
--- a/skynet/frontend/chatbot/__init__.py
+++ b/skynet/frontend/chatbot/__init__.py
@@ -22,7 +22,8 @@ from skynet.constants import (
     HELP_TOPICS,
     HELP_UNKWNOWN_PARAM,
     COOL_WORDS,
-    DONATION_INFO
+    DONATION_INFO,
+    UNKNOWN_CMD_TEXT
 )
 from skynet.frontend import validate_user_config_request
 from skynet.frontend.chatbot.db import FrontendUserDB
@@ -473,3 +474,6 @@ class BaseChatbot(ABC):
             return
 
         await self.new_msg(self.main_group, msg.text)
+
+    async def echo_unknown(self, msg: BaseMessage):
+        await self.reply_to(msg, UNKNOWN_CMD_TEXT)
diff --git a/skynet/frontend/chatbot/telegram.py b/skynet/frontend/chatbot/telegram.py
index 58e2bf6..ccaf271 100644
--- a/skynet/frontend/chatbot/telegram.py
+++ b/skynet/frontend/chatbot/telegram.py
@@ -264,6 +264,12 @@ class TelegramChatbot(BaseChatbot):
 
         append_handler(bot, BaseCommands.REDO, self.handle_request)
 
+        @bot.message_handler(func=lambda _: True)
+        async def unknown_cmd(tg_msg: TGMessage):
+            if tg_msg.text[0] == '/':
+                msg = TelegramMessage(cmd='unknown', msg=tg_msg)
+                await self.echo_unknown(msg)
+
         self.bot = bot
 
         self._main_room: TelegramChatRoom | None = None