diff --git a/services/core/java/com/android/server/MountServiceIdler.java b/services/core/java/com/android/server/MountServiceIdler.java
index 215d92d8a49b8..bc851a3f0ce0c 100644
--- a/services/core/java/com/android/server/MountServiceIdler.java
+++ b/services/core/java/com/android/server/MountServiceIdler.java
@@ -98,7 +98,7 @@ public class MountServiceIdler extends JobService {
     private static Calendar tomorrowMidnight() {
         Calendar calendar = Calendar.getInstance();
         calendar.setTimeInMillis(System.currentTimeMillis());
-        calendar.set(Calendar.HOUR, 0);
+        calendar.set(Calendar.HOUR_OF_DAY, 0);
         calendar.set(Calendar.MINUTE, 0);
         calendar.set(Calendar.SECOND, 0);
         calendar.set(Calendar.MILLISECOND, 0);