diff --git a/src/com/android/settings/widget/SettingsAppWidgetProvider.java b/src/com/android/settings/widget/SettingsAppWidgetProvider.java
index a5d36582b7b..6b97adca518 100644
--- a/src/com/android/settings/widget/SettingsAppWidgetProvider.java
+++ b/src/com/android/settings/widget/SettingsAppWidgetProvider.java
@@ -944,6 +944,8 @@ public class SettingsAppWidgetProvider extends AppWidgetProvider {
                     .getUriFor(Settings.System.SCREEN_BRIGHTNESS), false, this);
             resolver.registerContentObserver(Settings.System
                     .getUriFor(Settings.System.SCREEN_BRIGHTNESS_MODE), false, this);
+            resolver.registerContentObserver(Settings.System
+                    .getUriFor(Settings.System.SCREEN_AUTO_BRIGHTNESS_ADJ), false, this);
         }
 
         void stopObserving() {