diff --git a/service_container/definitions.rst b/service_container/definitions.rst
index 29db23cd090..b47ea9e143e 100644
--- a/service_container/definitions.rst
+++ b/service_container/definitions.rst
@@ -38,9 +38,6 @@ There are some helpful methods for working with the service definitions::
     // shortcut for the previous method
     $container->register('app.number_generator', \AppBundle\NumberGenerator::class);
 
-    // or create a service whose id matches its class
-    $container->register(\AppBundle\NumberGenerator::class);
-
 Working with a Definition
 -------------------------