diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java
index e2c69f9538a77..4e9aec751bdb6 100644
--- a/core/java/android/provider/Settings.java
+++ b/core/java/android/provider/Settings.java
@@ -10064,6 +10064,13 @@ public final class Settings {
         @Readable
         public static final String QS_AUTO_ADDED_TILES = "qs_auto_tiles";
 
+        /**
+         * The duration of timeout, in milliseconds, to switch from a non-primary user to the
+         * primary user when the device is docked.
+         * @hide
+         */
+        public static final String TIMEOUT_TO_USER_ZERO = "timeout_to_user_zero";
+
         /**
          * Backup manager behavioral parameters.
          * This is encoded as a key=value list, separated by commas. Ex: