diff --git a/tests/tests/display/src/android/display/cts/BrightnessTest.java b/tests/tests/display/src/android/display/cts/BrightnessTest.java
index 7bbe88d..0ec6a3d 100644
--- a/tests/tests/display/src/android/display/cts/BrightnessTest.java
+++ b/tests/tests/display/src/android/display/cts/BrightnessTest.java
@@ -36,6 +36,7 @@
 import android.hardware.display.DisplayManager;
 import android.os.ParcelFileDescriptor;
 import android.os.PowerManager;
+import android.platform.test.annotations.AppModeFull;
 import android.provider.Settings;
 import android.util.Pair;
 
@@ -56,6 +57,7 @@
 import java.util.Map;
 import java.util.Scanner;
 
+@AppModeFull
 @MediumTest
 @RunWith(AndroidJUnit4.class)
 public class BrightnessTest {