diff --git a/wechat_ipad/client/message.py b/wechat_ipad/client/message.py
index 216aef4..c9e9fe0 100644
--- a/wechat_ipad/client/message.py
+++ b/wechat_ipad/client/message.py
@@ -191,7 +191,7 @@ class MessageMixin(WechatAPIClientBase):
                 json_param.pop('Base64')
                 self.logging.info("发送图片消息: 对方wxid:{} 图片base64略", wxid)
                 data = json_resp.get("Data")
-                return data.get("ClientImgId").get("string"), data.get("CreateTime"), data.get("Newmsgid")
+                return data.get("ClientImgId").get("string"), data.get("CreateTime"), data.get("NewMsgId")
             else:
                 self.error_handler(json_resp)