diff --git a/composer.json b/composer.json
index 92114b8..4fa2478 100644
--- a/composer.json
+++ b/composer.json
@@ -19,11 +19,13 @@
         "behat/mink": "^1.7",
         "behat/mink-browserkit-driver": "^1.3",
         "behat/mink-extension": "^2.2",
+        "friends-of-behat/cross-container-extension": "^0.1",
         "friends-of-behat/test-context": "^0.3",
         "symfony/framework-bundle": "^2.7|^3.0"
     },
     "suggest": {
-        "behat/mink-browserkit-driver": "^1.3"
+        "behat/mink-browserkit-driver": "^1.3",
+        "friends-of-behat/cross-container-extension": "^0.1"
     },
     "autoload": {
         "psr-4": { "FriendsOfBehat\\SymfonyExtension\\": "src/" }
diff --git a/features/not_crashing_behat.feature b/features/not_crashing_behat.feature
index 4a8ed91..a973f8d 100644
--- a/features/not_crashing_behat.feature
+++ b/features/not_crashing_behat.feature
@@ -28,3 +28,31 @@ Feature: Not crashing Behat
         And a feature file with passing scenario
         When I run Behat
         Then it should pass
+
+    Scenario: Not crashing Behat with CrossContainerExtension
+        Given a Behat configuration containing:
+        """
+        default:
+            extensions:
+                FriendsOfBehat\SymfonyExtension:
+                    kernel:
+                        bootstrap: ~
+
+                FriendsOfBehat\CrossContainerExtension: ~
+        """
+        And a file "app/AppKernel.php" containing:
+        """
+        <?php
+
+        use Symfony\Component\HttpKernel\Kernel;
+        use Symfony\Component\Config\Loader\LoaderInterface;
+
+        class AppKernel extends Kernel
+        {
+            public function registerBundles() { return []; }
+            public function registerContainerConfiguration(LoaderInterface $loader) {}
+        }
+        """
+        And a feature file with passing scenario
+        When I run Behat
+        Then it should pass
diff --git a/src/ServiceContainer/SymfonyExtension.php b/src/ServiceContainer/SymfonyExtension.php
index c51e75c..dd5595c 100644
--- a/src/ServiceContainer/SymfonyExtension.php
+++ b/src/ServiceContainer/SymfonyExtension.php
@@ -15,9 +15,13 @@ use Behat\MinkExtension\ServiceContainer\MinkExtension;
 use Behat\Testwork\EventDispatcher\ServiceContainer\EventDispatcherExtension;
 use Behat\Testwork\ServiceContainer\Extension;
 use Behat\Testwork\ServiceContainer\ExtensionManager;
+use FriendsOfBehat\CrossContainerExtension\CrossContainerProcessor;
+use FriendsOfBehat\CrossContainerExtension\KernelBasedContainerAccessor;
+use FriendsOfBehat\CrossContainerExtension\ServiceContainer\CrossContainerExtension;
 use FriendsOfBehat\SymfonyExtension\Driver\Factory\SymfonyDriverFactory;
 use FriendsOfBehat\SymfonyExtension\Listener\KernelRebooter;
 use Symfony\Component\Config\Definition\Builder\ArrayNodeDefinition;
+use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
 use Symfony\Component\DependencyInjection\Container;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\DependencyInjection\Definition;
@@ -55,6 +59,11 @@ final class SymfonyExtension implements Extension
      */
     const SHARED_KERNEL_CONTAINER_ID = 'sylius_symfony_extension.shared_kernel.container';
 
+    /**
+     * @var CrossContainerProcessor|null
+     */
+    private $crossContainerProcessor;
+
     /**
      * {@inheritdoc}
      */
@@ -69,6 +78,7 @@ final class SymfonyExtension implements Extension
     public function initialize(ExtensionManager $extensionManager)
     {
         $this->registerSymfonyDriverFactory($extensionManager);
+        $this->initializeCrossContainerProcessor($extensionManager);
     }
 
     /**
@@ -104,6 +114,7 @@ final class SymfonyExtension implements Extension
         $this->loadSharedKernelContainer($container);
 
         $this->loadKernelRebooter($container);
+        $this->declareSymfonyContainers($container);
     }
 
     /**
@@ -185,6 +196,36 @@ final class SymfonyExtension implements Extension
         $container->setDefinition(self::KERNEL_ID . '.rebooter', $definition);
     }
 
+    /**
+     * @param ContainerBuilder $container
+     */
+    private function declareSymfonyContainers(ContainerBuilder $container)
+    {
+        if (null !== $this->crossContainerProcessor) {
+            $this->crossContainerProcessor->addContainerAccessor(
+                'symfony',
+                new KernelBasedContainerAccessor($container->get(self::KERNEL_ID))
+            );
+
+            $this->crossContainerProcessor->addContainerAccessor(
+                'symfony',
+                new KernelBasedContainerAccessor($container->get(self::SHARED_KERNEL_ID))
+            );
+        }
+    }
+
+    /**
+     * @param ExtensionManager $extensionManager
+     */
+    private function initializeCrossContainerProcessor(ExtensionManager $extensionManager)
+    {
+        /** @var CrossContainerExtension $extension */
+        $extension = $extensionManager->getExtension('fob_cross_container');
+        if (null !== $extension) {
+            $this->crossContainerProcessor = $extension->getCrossContainerProcessor();
+        }
+    }
+
     /**
      * @param ExtensionManager $extensionManager
      */