diff --git a/source/development/useful-snippets.rst b/source/development/useful-snippets.rst
index 435790b0f..98d07a1d1 100644
--- a/source/development/useful-snippets.rst
+++ b/source/development/useful-snippets.rst
@@ -5,6 +5,44 @@
 Useful snippets
 ###############
 
+Dependency Injection
+********************
+
+Configure route automatically
+=============================
+
+Add the route for the current bundle automatically on the main app.
+
+.. code-block:: php
+
+    namespace Chill\MyBundle\DependencyInjection;
+
+    use Symfony\Component\DependencyInjection\ContainerBuilder;
+    use Symfony\Component\DependencyInjection\Extension\PrependExtensionInterface;
+
+
+    class ChillMyExtension extends Extension implements PrependExtensionInterface
+    {
+        // ...
+
+        public function prepend(ContainerBuilder $container)
+        {
+            $this->prependRoutes($container);
+
+        }
+            
+        public function prependRoutes(ContainerBuilder $container) 
+        {
+            //add routes for custom bundle
+             $container->prependExtensionConfig('chill_main', array(
+               'routing' => array(
+                  'resources' => array(
+                     '@ChillMyBundle/Resources/config/routing.yml'
+                  )
+               )
+            ));
+        }
+
 
 Security
 ********