diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 602c75ca4..6231a701f 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -444,8 +444,7 @@
     <string name="find">发现</string>
     <string name="switch_display_style">切换显示样式</string>
     <string name="import_per">导入本地书籍需存储权限</string>
-    <string name="click_to_day">点击可切换到白天模式</string>
-    <string name="click_to_night">点击可切换到夜间模式</string>
+    <string name="night_theme">夜间模式</string>
     <string name="get_storage_per">本软件需要存储权限来存储备份书籍信息</string>
     <string name="double_click_exit">再按一次退出程序</string>
     <string name="import_book_per">导入本地书籍需存储权限</string>
diff --git a/app/src/main/res/xml/pref_main.xml b/app/src/main/res/xml/pref_main.xml
index abe6e9b08..297298599 100644
--- a/app/src/main/res/xml/pref_main.xml
+++ b/app/src/main/res/xml/pref_main.xml
@@ -12,6 +12,12 @@
         android:title="@string/replace_purify"
         app:iconSpaceReserved="false" />
 
+    <io.legado.app.lib.theme.prefs.ATESwitchPreference
+        android:defaultValue="false"
+        android:key="isNightTheme"
+        android:title="@string/night_theme"
+        app:iconSpaceReserved="false" />
+
     <io.legado.app.lib.theme.prefs.ATESwitchPreference
         android:defaultValue="false"
         android:key="webService"