diff --git a/wxbot.py b/wxbot.py
index a6386dd..762de07 100644
--- a/wxbot.py
+++ b/wxbot.py
@@ -239,7 +239,7 @@ class WXBot(WebWeixin):
 
             # 工作时间发送新消息提醒到飞书
             curr_time_struct = time.localtime(time.time())
-            if params['from_name'] <> '_self' and curr_time_struct.tm_hour >= 10 and curr_time_struct.tm_hour < 19:
+            if params['from_name'] != '_self' and curr_time_struct.tm_hour >= 10 and curr_time_struct.tm_hour < 19:
                 requests.post(
                     "https://open.feishu.cn/open-apis/bot/v2/hook/30bda541-46de-40b7-8881-31b77deadc35",
                     headers={"Content-Type": "application/json"},