diff --git a/symfony/framework-bundle/3.3/src/Kernel.php b/symfony/framework-bundle/3.3/src/Kernel.php
index 7ee9374b..4425aee4 100644
--- a/symfony/framework-bundle/3.3/src/Kernel.php
+++ b/symfony/framework-bundle/3.3/src/Kernel.php
@@ -37,6 +37,7 @@ class Kernel extends BaseKernel
     protected function configureContainer(ContainerBuilder $container, LoaderInterface $loader)
     {
         $container->setParameter('container.autowiring.strict_mode', true);
+        $container->setParameter('container.dumper.inline_class_loader', true);
         $confDir = $this->getProjectDir().'/config';
         $loader->load($confDir.'/packages/*'.self::CONFIG_EXTS, 'glob');
         if (is_dir($confDir.'/packages/'.$this->environment)) {