diff --git a/DependencyInjection/OdandbSimpleCorsExtension.php b/DependencyInjection/OdandbSimpleCorsExtension.php
new file mode 100644
index 0000000..e0b20b4
--- /dev/null
+++ b/DependencyInjection/OdandbSimpleCorsExtension.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace Odandb\SimpleCorsBundle\DependencyInjection;
+
+use Symfony\Component\Config\FileLocator;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Extension\Extension;
+use Symfony\Component\DependencyInjection\Loader\YamlFileLoader;
+
+class OdandbSimpleCorsExtension extends Extension
+{
+    public function load(array $configs, ContainerBuilder $container)
+    {
+        $loader = new YamlFileLoader(
+            $container,
+            new FileLocator(__DIR__.'/../Resources/config')
+        );
+        $loader->load('services.yml');
+    }
+}
\ No newline at end of file
diff --git a/OdandbSimpleCorsBundle.php b/OdandbSimpleCorsBundle.php
index aa4a8df..f10f852 100644
--- a/OdandbSimpleCorsBundle.php
+++ b/OdandbSimpleCorsBundle.php
@@ -2,6 +2,7 @@
 
 namespace Odandb\SimpleCorsBundle;
 
+use Odandb\SimpleCorsBundle\DependencyInjection\OdandbSimpleCorsExtension;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\HttpKernel\Bundle\Bundle;
 
@@ -11,4 +12,9 @@ public function build(ContainerBuilder $container): void
     {
         parent::build($container);
     }
+
+    public function getContainerExtension()
+    {
+        return new OdandbSimpleCorsExtension();
+    }
 }
\ No newline at end of file