diff --git a/app/src/main/res/xml/preferences_ui.xml b/app/src/main/res/xml/preferences_ui.xml
index 37dbc0185..aec268a04 100644
--- a/app/src/main/res/xml/preferences_ui.xml
+++ b/app/src/main/res/xml/preferences_ui.xml
@@ -23,7 +23,7 @@
         app:title="@string/set_black_mode" />
 
     <SwitchPreferenceCompat
-        app:defaultValue="false"
+        app:defaultValue="true"
         app:key="@string/set_key_round_mode"
         app:summary="@string/set_round_mode_desc"
         app:title="@string/set_round_mode" />