diff --git a/mpmaster/src/main/java/com/xypower/mpmaster/MpMasterService.java b/mpmaster/src/main/java/com/xypower/mpmaster/MpMasterService.java
index 444d77a9..0f9044c1 100644
--- a/mpmaster/src/main/java/com/xypower/mpmaster/MpMasterService.java
+++ b/mpmaster/src/main/java/com/xypower/mpmaster/MpMasterService.java
@@ -667,7 +667,7 @@ public class MpMasterService extends Service {
         if (keepAlive) {
             alarmIntent.putExtra("keepAlive", keepAlive);
         }
-        PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, alarmIntent, 0);
+        PendingIntent pendingIntent = PendingIntent.getBroadcast(this, keepAlive ? 0 : 1, alarmIntent, PendingIntent.FLAG_UPDATE_CURRENT);
 
         Date dt = new Date(triggerTime);