diff --git a/core/java/android/util/FeatureFlagUtils.java b/core/java/android/util/FeatureFlagUtils.java
index bca100a1d81e9..6942ff562fa6a 100644
--- a/core/java/android/util/FeatureFlagUtils.java
+++ b/core/java/android/util/FeatureFlagUtils.java
@@ -110,6 +110,12 @@ public class FeatureFlagUtils {
      */
     public static final String SETTINGS_NEW_KEYBOARD_UI = "settings_new_keyboard_ui";
 
+    /**
+     * Enable the new pages which is implemented with SPA.
+     * @hide
+     */
+    public static final String SETTINGS_ENABLE_SPA = "settings_enable_spa";
+
     private static final Map<String, String> DEFAULT_FLAGS;
 
     static {
@@ -141,6 +147,7 @@ public class FeatureFlagUtils {
         DEFAULT_FLAGS.put(SETTINGS_ENABLE_CLEAR_CALLING, "false");
         DEFAULT_FLAGS.put(SETTINGS_ACCESSIBILITY_SIMPLE_CURSOR, "false");
         DEFAULT_FLAGS.put(SETTINGS_NEW_KEYBOARD_UI, "false");
+        DEFAULT_FLAGS.put(SETTINGS_ENABLE_SPA, "false");
     }
 
     private static final Set<String> PERSISTENT_FLAGS;