diff --git a/CHANGELOG.md b/CHANGELOG.md
index 525f877..3665b33 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 4.15.4
+
+- fix: `_isSelectedOf` and `_isPushedOf` get error
+
 ## 4.15.3
 
 - fix: url is missing / at the beginning
diff --git a/lib/src/navigator/navigator_route_settings.dart b/lib/src/navigator/navigator_route_settings.dart
index 55289d5..2581fcc 100644
--- a/lib/src/navigator/navigator_route_settings.dart
+++ b/lib/src/navigator/navigator_route_settings.dart
@@ -136,7 +136,7 @@ extension NavigatorRouteSettings on RouteSettings {
 
   /// Indicates whether this route is generated by build
   ///
-  bool get isBuilt => _isBuiltOf[name!] ?? false;
+  bool get isBuilt => _isBuiltOf[this] ?? false;
 
   set isBuilt(bool built) {
     _isBuiltOf[this] = built;
@@ -144,7 +144,7 @@ extension NavigatorRouteSettings on RouteSettings {
 
   /// Indicates whether this route is generated by push
   ///
-  bool get isPushed => _isPushedOf[name!] ?? false;
+  bool get isPushed => _isPushedOf[this] ?? false;
 
   set isPushed(bool pushed) {
     _isPushedOf[this] = pushed;
@@ -156,7 +156,7 @@ extension NavigatorRouteSettings on RouteSettings {
     if (!isBuilt) {
       return null;
     }
-    return _isSelectedOf[name!];
+    return _isSelectedOf[this];
   }
 
   set isSelected(bool? selected) {
diff --git a/pubspec.yaml b/pubspec.yaml
index fb8f1d6..61749f7 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: flutter_thrio
 description: Thrio makes it easy and fast to add flutter to existing mobile applications, and provide a simple and consistent navigator APIs.
-version: 4.15.3
+version: 4.15.4
 homepage: https://github.com/flutter-thrio/flutter_thrio
 
 environment: