diff --git a/app/src/main/res/xml/preferences_main.xml b/app/src/main/res/xml/preferences_main.xml
index 95701e10d..97d8d32f7 100644
--- a/app/src/main/res/xml/preferences_main.xml
+++ b/app/src/main/res/xml/preferences_main.xml
@@ -17,16 +17,17 @@
   ~
   -->
 
-<PreferenceScreen xmlns:app="http://schemas.android.com/apk/res-auto">
+<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
     <Preference
-        app:fragment="com.aurora.store.view.ui.preferences.FilterPreference"
+        android:fragment="com.aurora.store.view.ui.preferences.FilterPreference"
         app:icon="@drawable/ic_filter"
         app:key="pref_filter"
         app:layout="@layout/item_preference"
         app:title="@string/action_filter" />
 
     <Preference
-        app:fragment="com.aurora.store.view.ui.preferences.InstallationPreference"
+        android:fragment="com.aurora.store.view.ui.preferences.InstallationPreference"
         app:icon="@drawable/ic_installation"
         app:iconSpaceReserved="false"
         app:key="pref_install"
@@ -34,7 +35,7 @@
         app:title="@string/title_installation" />
 
     <Preference
-        app:fragment="com.aurora.store.view.ui.preferences.UIPreference"
+        android:fragment="com.aurora.store.view.ui.preferences.UIPreference"
         app:icon="@drawable/ic_ui"
         app:iconSpaceReserved="false"
         app:key="pref_ui"
@@ -42,7 +43,7 @@
         app:title="@string/pref_ui_title" />
 
     <Preference
-        app:fragment="com.aurora.store.view.ui.preferences.DownloadPreference"
+        android:fragment="com.aurora.store.view.ui.preferences.DownloadPreference"
         app:icon="@drawable/ic_download_manager"
         app:iconSpaceReserved="false"
         app:key="pref_ui"