diff --git a/packages/SystemUI/AndroidManifest.xml b/packages/SystemUI/AndroidManifest.xml
index 2913c169a0be3..4fd47232a0df1 100644
--- a/packages/SystemUI/AndroidManifest.xml
+++ b/packages/SystemUI/AndroidManifest.xml
@@ -865,7 +865,7 @@
         <activity
             android:name=".settings.brightness.BrightnessDialog"
             android:label="@string/quick_settings_brightness_dialog_title"
-            android:theme="@style/Theme.SystemUI.QuickSettings.BrightnessDialog"
+            android:theme="@style/BrightnessDialog"
             android:finishOnCloseSystemDialogs="true"
             android:launchMode="singleInstance"
             android:excludeFromRecents="true"
diff --git a/packages/SystemUI/res/values/styles.xml b/packages/SystemUI/res/values/styles.xml
index fd74c7eae361a..6b8562105c74c 100644
--- a/packages/SystemUI/res/values/styles.xml
+++ b/packages/SystemUI/res/values/styles.xml
@@ -398,7 +398,8 @@
         <item name="android:itemTextAppearance">@style/Control.MenuItem</item>
     </style>
 
-    <style name="Theme.SystemUI.QuickSettings.BrightnessDialog" parent="@android:style/Theme.DeviceDefault.Dialog">
+    <!-- Cannot double inherit. Use Theme.SystemUI.QuickSettings in code to match -->
+    <style name="BrightnessDialog" parent="@android:style/Theme.DeviceDefault.Dialog">
         <item name="android:windowBackground">@android:color/transparent</item>
     </style>
 
diff --git a/packages/SystemUI/src/com/android/systemui/settings/brightness/BrightnessDialog.java b/packages/SystemUI/src/com/android/systemui/settings/brightness/BrightnessDialog.java
index 8879501fa03d1..5199bd43f9829 100644
--- a/packages/SystemUI/src/com/android/systemui/settings/brightness/BrightnessDialog.java
+++ b/packages/SystemUI/src/com/android/systemui/settings/brightness/BrightnessDialog.java
@@ -84,6 +84,7 @@ public class BrightnessDialog extends Activity {
         window.getDecorView();
         window.setLayout(
                 WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.WRAP_CONTENT);
+        getTheme().applyStyle(R.style.Theme_SystemUI_QuickSettings, false);
 
         setContentView(R.layout.brightness_mirror_container);
         FrameLayout frame = findViewById(R.id.brightness_mirror_container);