diff --git a/apps/api/src/services/telegram_gateway.py b/apps/api/src/services/telegram_gateway.py
index 112f4310..4a57badf 100644
--- a/apps/api/src/services/telegram_gateway.py
+++ b/apps/api/src/services/telegram_gateway.py
@@ -1168,9 +1168,10 @@ class TelegramGateway:
                         f"Telegram API error: {result.get('description', 'Unknown error')}"
                     )
 
-                # 成功: 記錄 message_id
-                if "result" in result and "message_id" in result["result"]:
-                    span.set_attribute("telegram.message_id", result["result"]["message_id"])
+                # 成功: 記錄 message_id (result 可能是 dict 或 bool，需防禦)
+                result_val = result.get("result")
+                if isinstance(result_val, dict) and "message_id" in result_val:
+                    span.set_attribute("telegram.message_id", result_val["message_id"])
 
                 span.set_status(trace.Status(trace.StatusCode.OK))
                 return result