diff --git a/symfony/framework-bundle/3.3/src/Kernel.php b/symfony/framework-bundle/3.3/src/Kernel.php
index 815d4b86..c9420adf 100644
--- a/symfony/framework-bundle/3.3/src/Kernel.php
+++ b/symfony/framework-bundle/3.3/src/Kernel.php
@@ -36,6 +36,8 @@ class Kernel extends BaseKernel
 
     protected function configureContainer(ContainerBuilder $container, LoaderInterface $loader)
     {
+        // Feel free to remove the "container.autowiring.strict_mode" parameter
+        // if you are using symfony/dependency-injection 4.0+ as it's the default behavior
         $container->setParameter('container.autowiring.strict_mode', true);
         $container->setParameter('container.dumper.inline_class_loader', true);
         $confDir = $this->getProjectDir().'/config';