diff --git a/core/tests/coretests/src/android/provider/SettingsBackupTest.java b/core/tests/coretests/src/android/provider/SettingsBackupTest.java
index 76331a8..3584569 100644
--- a/core/tests/coretests/src/android/provider/SettingsBackupTest.java
+++ b/core/tests/coretests/src/android/provider/SettingsBackupTest.java
@@ -460,6 +460,7 @@
                  Settings.Secure.TV_INPUT_CUSTOM_LABELS,
                  Settings.Secure.TV_INPUT_HIDDEN_INPUTS,
                  Settings.Secure.UI_NIGHT_MODE, // candidate?
+                 Settings.Secure.UNKNOWN_SOURCES_DEFAULT_REVERSED,
                  Settings.Secure.UNSAFE_VOLUME_MUSIC_ACTIVE_MS,
                  Settings.Secure.USB_AUDIO_AUTOMATIC_ROUTING_DISABLED,
                  Settings.Secure.USER_SETUP_COMPLETE,