diff --git a/Scripts/py/EUserv_extend.py b/Scripts/py/EUserv_extend.py
index 8ddcfc4..07abc1b 100644
--- a/Scripts/py/EUserv_extend.py
+++ b/Scripts/py/EUserv_extend.py
@@ -198,6 +198,8 @@ def push_plus():
 
 # Telegram Bot Push https://core.telegram.org/bots/api#authorizing-your-bot
 def telegram():
+    if TG_API_HOST == "" or TG_API_HOST == None:
+        TG_API_HOST = "api.telegram.org"
     data = (
         ('chat_id', TG_USER_ID),
         ('text', 'EUserv续费日志\n\n' + desp)