diff --git a/package/lib/src/beamer_delegate.dart b/package/lib/src/beamer_delegate.dart
index bc71bc1..ebf6531 100644
--- a/package/lib/src/beamer_delegate.dart
+++ b/package/lib/src/beamer_delegate.dart
@@ -50,11 +50,6 @@ class BeamerDelegate extends RouterDelegate<RouteInformation>
     updateListenable?.addListener(_update);
   }
 
-  /// They are regenerated on [buildPages],
-  /// so they are only valid for one build cycle.
-  ///
-  /// The reason for not making them persistent across build cycles is that
-  /// we can't know the [BeamPage.key] before creating them (see [buildPages]).
   final Map<LocalKey, BeamPageStateNotifier> pageNotifiers = {};
 
   bool _firstBuild = true;