Flutter injectable - Inject one singleton for several interfaces

I'm trying to register a singleton of one class which implements two interfaces. Is that possible? The generator states, that one interface is not a subtype of it's own.

abstract class IOne { ... }
abstract class ITwo { ... }

@module
abstract class RegisterMySingleton {
  @LazySingleton(as: IOne)
  IOne get one => getIt<MySingleton>();
  @LazySingleton(as: ITwo )
  ITwo get two => getIt<MySingleton>();
}

@lazySingleton
class MySingleton implements IOne, ITwo { ... }

Output of flutter pub run build_runner build --delete-conflicting-outputs

[IOne] is not a subtype of [IOne]