diff --git a/flutter_custom_tabs/lib/src/types/launch_options.dart b/flutter_custom_tabs/lib/src/types/launch_options.dart
index 9071e2d4..6d17e5b0 100644
--- a/flutter_custom_tabs/lib/src/types/launch_options.dart
+++ b/flutter_custom_tabs/lib/src/types/launch_options.dart
@@ -76,6 +76,7 @@ class LaunchOptions {
 
 /// The color configuration of the system navigation bar.
 @experimental
+@immutable
 class SystemNavigationBarParams {
   /// The color of the system navigation bar.
   final Color backgroundColor;