diff --git a/res/layout/preference_dropdown_material_settings.xml b/res/layout/preference_dropdown_material_settings.xml
deleted file mode 100644
index a3f5ab903fc..00000000000
--- a/res/layout/preference_dropdown_material_settings.xml
+++ /dev/null
@@ -1,35 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  Copyright (C) 2016 The Android Open Source Project
-
-  Licensed under the Apache License, Version 2.0 (the "License");
-  you may not use this file except in compliance with the License.
-  You may obtain a copy of the License at
-
-       http://www.apache.org/licenses/LICENSE-2.0
-
-  Unless required by applicable law or agreed to in writing, software
-  distributed under the License is distributed on an "AS IS" BASIS,
-  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  See the License for the specific language governing permissions and
-  limitations under the License.
-  -->
-
-
-<!-- Based off frameworks/base/core/res/res/layout/preference_dropdown_material.xml
-     except that icon space in this layout is always reserved -->
-<FrameLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content">
-
-    <Spinner
-        android:id="@+id/spinner"
-        android:layout_width="0dp"
-        android:layout_height="wrap_content"
-        android:layout_marginStart="@dimen/preference_no_icon_padding_start"
-        android:visibility="invisible" />
-
-    <include layout="@layout/preference_material"/>
-
-</FrameLayout>
\ No newline at end of file
diff --git a/res/values/styles_preference.xml b/res/values/styles_preference.xml
index 6b632ca7b1d..a55f5caae12 100644
--- a/res/values/styles_preference.xml
+++ b/res/values/styles_preference.xml
@@ -20,27 +20,27 @@
 <resources>
 
     <!-- Fragment style -->
-    <style name="SettingsPreferenceFragmentStyle" parent="@style/PreferenceFragmentStyle.SettingsBase">
+    <style name="SettingsPreferenceFragmentStyle" parent="@style/PreferenceFragment.Material">
         <item name="android:layout">@layout/preference_list_fragment</item>
     </style>
 
-    <style name="ApnPreference" parent="Preference.SettingsBase">
+    <style name="ApnPreference" parent="@style/Preference.Material">
         <item name="android:layout">@layout/apn_preference_layout</item>
     </style>
 
-    <style name="SettingsSeekBarPreference" parent="Preference.SettingsBase">
+    <style name="SettingsSeekBarPreference" parent="@style/Preference.Material">
         <item name="android:layout">@layout/preference_widget_seekbar_settings</item>
     </style>
 
-    <style name="SyncSwitchPreference" parent="Preference.SettingsBase">
+    <style name="SyncSwitchPreference" parent="@style/Preference.Material">
         <item name="android:widgetLayout">@layout/preference_widget_sync_toggle</item>
     </style>
 
-    <style name="TwoStateButtonPreference" parent="Preference.SettingsBase">
+    <style name="TwoStateButtonPreference" parent="@style/Preference.Material">
         <item name="android:layout">@layout/two_state_button</item>
     </style>
 
-    <style name="SettingsMultiSelectListPreference" parent="Preference.SettingsBase">
+    <style name="SettingsMultiSelectListPreference" parent="@style/Preference.Material">
         <item name="android:positiveButtonText">@android:string/ok</item>
         <item name="android:negativeButtonText">@android:string/cancel</item>
     </style>