diff --git a/app/src/main/java/io/legado/app/ui/main/my/MyFragment.kt b/app/src/main/java/io/legado/app/ui/main/my/MyFragment.kt
index 264fb5a8d..806d79942 100644
--- a/app/src/main/java/io/legado/app/ui/main/my/MyFragment.kt
+++ b/app/src/main/java/io/legado/app/ui/main/my/MyFragment.kt
@@ -131,7 +131,6 @@ class MyFragment : BaseFragment(R.layout.fragment_my_config), FileChooserDialog.
                         putPrefInt(PreferKey.cLAccent, getPrefInt(PreferKey.cAccent))
                         putPrefInt(PreferKey.cLBackground, getPrefInt(PreferKey.cBackground))
                         putPrefInt(PreferKey.cLBBackground, getPrefInt(PreferKey.cBBackground))
-                        putPrefBoolean(PreferKey.lastIsNight, AppConfig.isNightTheme)
                         putPrefString(
                             PreferKey.lastThemeMode,
                             getPrefString(PreferKey.themeMode) ?: "0"