diff --git a/packages/Shell/AndroidManifest.xml b/packages/Shell/AndroidManifest.xml
index 96caf31..83d7218 100644
--- a/packages/Shell/AndroidManifest.xml
+++ b/packages/Shell/AndroidManifest.xml
@@ -233,6 +233,9 @@
     <uses-permission android:name="android.permission.READ_COMPAT_CHANGE_CONFIG"/>
     <uses-permission android:name="android.permission.OVERRIDE_COMPAT_CHANGE_CONFIG"/>
 
+    <!-- Permission required for CTS test - BatterySaverTest -->
+    <uses-permission android:name="android.permission.MODIFY_DAY_NIGHT_MODE"/>
+
     <!-- Permission required for CTS test - UiModeManagerTest -->
     <uses-permission android:name="android.permission.ENTER_CAR_MODE_PRIORITIZED"/>