diff --git a/lib/redux/ui/pref_state.dart b/lib/redux/ui/pref_state.dart
index 36f44cd61..8ca1c5f4b 100644
--- a/lib/redux/ui/pref_state.dart
+++ b/lib/redux/ui/pref_state.dart
@@ -283,6 +283,7 @@ abstract class PrefState implements Built<PrefState, PrefStateBuilder> {
     ..enableTooltips = true
     ..enableNativeBrowser = false
     ..textScaleFactor = 1
+    ..darkModeType = kBrightnessSytem
     ..colorTheme = kColorThemeLight
     ..darkColorTheme = kColorThemeDark;