diff --git a/src/Symfony/Bundle/FrameworkBundle/Kernel/MicroKernelTrait.php b/src/Symfony/Bundle/FrameworkBundle/Kernel/MicroKernelTrait.php
index bd95b4db46..73c2a0605c 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Kernel/MicroKernelTrait.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Kernel/MicroKernelTrait.php
@@ -88,6 +88,7 @@ trait MicroKernelTrait
     {
         $loader->load(function (ContainerBuilder $container) use ($loader) {
             $container->loadFromExtension('framework', [
+                'secret' => '%env(APP_SECRET)%',
                 'router' => [
                     'resource' => 'kernel::loadRoutes',
                     'type' => 'service',
@@ -108,7 +109,6 @@ trait MicroKernelTrait
 
             $container->addObjectResource($this);
             $container->fileExists($this->getProjectDir().'/config/bundles.php');
-            $container->setParameter('kernel.secret', '%env(APP_SECRET)%');
 
             try {
                 $this->configureContainer($container, $loader);
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Kernel/MicroKernelTraitTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Kernel/MicroKernelTraitTest.php
index 3f61496bc2..0addeed984 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Kernel/MicroKernelTraitTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Kernel/MicroKernelTraitTest.php
@@ -69,4 +69,12 @@ class MicroKernelTraitTest extends TestCase
 
         $this->assertEquals('Have a great day!', $response->getContent());
     }
+
+    public function testSecretLoadedFromExtension()
+    {
+        $kernel = new ConcreteMicroKernel('test', false);
+        $kernel->boot();
+
+        self::assertSame('$ecret', $kernel->getContainer()->getParameter('kernel.secret'));
+    }
 }