diff --git a/TUTORIAL.md b/TUTORIAL.md
index 4fa9dee..0d77823 100644
--- a/TUTORIAL.md
+++ b/TUTORIAL.md
@@ -34,9 +34,9 @@ auto exampleClassInstance = dependencies.resolve!ExampleInterface;
 auto exampleClassInstance2 = dependencies.resolve!ExampleClass;
 assert(exampleClassInstance is exampleClassInstance2);
 ```
-If you want to prevent registrations from being both registered by interface and concrete type, use the DO_NOT_ADD_CONCRETE_TYPE_REGISTRATION option when registering:
+If you want to prevent registrations from being both registered by interface and concrete type, use the "doNotAddConcreteTypeRegistration" option when registering:
 ```d
-dependencies.register!(ExampleInterface, ExampleClass)(RegistrationOptions.DO_NOT_ADD_CONCRETE_TYPE_REGISTRATION);
+dependencies.register!(ExampleInterface, ExampleClass)([RegistrationOptions.doNotAddConcreteTypeRegistration]);
 auto exampleClassInstance = dependencies.resolve!ExampleInterface;
 auto exampleClassInstance2 = dependencies.resolve!ExampleClass; // A ResolveException is thrown
 ```