diff --git a/configuration/micro_kernel_trait.rst b/configuration/micro_kernel_trait.rst
index 625f7578f2c..f6b5eedf1f6 100644
--- a/configuration/micro_kernel_trait.rst
+++ b/configuration/micro_kernel_trait.rst
@@ -55,7 +55,7 @@ Next, create an ``index.php`` file that defines the kernel class and executes it
         {
             // kernel is a service that points to this class
             // optional 3rd argument is the route name
-            $routes->add('/random/{limit}', 'Kernel::randomNumber');
+            $routes->add('/random/{limit}', 'kernel::randomNumber');
         }
 
         public function randomNumber($limit)