diff --git a/core/java/android/ext/settings/ExtSettings.java b/core/java/android/ext/settings/ExtSettings.java
index 854a83520c5f..95357db151ad 100644
--- a/core/java/android/ext/settings/ExtSettings.java
+++ b/core/java/android/ext/settings/ExtSettings.java
@@ -17,7 +17,7 @@ public class ExtSettings {
             Setting.Scope.PER_USER, "auto_grant_OTHER_SENSORS_perm", true);
 
     public static final IntSetting AUTO_REBOOT_TIMEOUT = new IntSetting(
-            Setting.Scope.GLOBAL, "settings_reboot_after_timeout", 0);
+            Setting.Scope.GLOBAL, "settings_reboot_after_timeout", 259200000);
 
     public static final BoolSetting SCREENSHOT_TIMESTAMP_EXIF = new BoolSetting(
             Setting.Scope.PER_USER, "screenshot_timestamp_exif", false);