diff --git a/src/Uno.UI/Controls/RootViewController.iOS.cs b/src/Uno.UI/Controls/RootViewController.iOS.cs
index 02f0c34ad210..899eed274cc6 100644
--- a/src/Uno.UI/Controls/RootViewController.iOS.cs
+++ b/src/Uno.UI/Controls/RootViewController.iOS.cs
@@ -65,7 +65,7 @@ private void Initialize()
 			// iOS 17+ only
 			if (UIDevice.CurrentDevice.CheckSystemVersion(17, 0))
 			{
-				((IUITraitChangeObservable)this).RegisterForTraitChanges((env, traits) => SystemThemeHelper.RefreshSystemTheme());
+				((IUITraitChangeObservable)this).RegisterForTraitChanges((env, traits) => SystemThemeHelper.RefreshSystemTheme(), typeof(UITraitUserInterfaceStyle));
 			}
 #endif
 		}