diff --git a/zh-cn/application-dev/task-management/background-agent-scheduled-reminder-guide.md b/zh-cn/application-dev/task-management/background-agent-scheduled-reminder-guide.md
index 4362b733b63c2d67fd302ebcedd2c9f695c56846..86ac88d5603c07025b4d9113243d22c25604fe43 100644
--- a/zh-cn/application-dev/task-management/background-agent-scheduled-reminder-guide.md
+++ b/zh-cn/application-dev/task-management/background-agent-scheduled-reminder-guide.md
@@ -148,7 +148,7 @@ struct Index {
 
   publishReminder() {
     try {
-        reminderAgentManager.publishReminder(this.timer).then(res => {
+        reminderAgentManager.publishReminder(timer).then(res => {
             console.log("publishReminder promise reminderId:" + res);
         }).catch(err => {
             console.log("publishReminder err code:" + err.code + " message:" + err.message);