diff --git a/Controller/StreamController.php b/Controller/StreamController.php
index 47d1e23..0fd1e41 100644
--- a/Controller/StreamController.php
+++ b/Controller/StreamController.php
@@ -93,8 +93,7 @@ protected function createStreamResponse(array $options, $format, $source = self:
 
         if ($this->mustForceRefresh() || $content->getLastModified() > $this->getModifiedSince()) {
             $response = new Response($this->getFeedIo()->format($content, $format));
-            $response->headers->set('Content-Type', 'application/xhtml+xml');
-            $this->setFeedHeaders($response, $content);
+            $this->setFeedHeaders($response, $content, $format);
 
         } else {
             $response = new Response();
@@ -107,11 +106,13 @@ protected function createStreamResponse(array $options, $format, $source = self:
     /**
      * @param Response $response
      * @param FeedInterface $feed
+     * @param string $format
      * @return $this
      */
-    protected function setFeedHeaders(Response $response, FeedInterface $feed)
+    protected function setFeedHeaders(Response $response, FeedInterface $feed, $format)
     {
-        $response->headers->set('Content-Type', 'application/xhtml+xml');
+        $contentType = 'json' == $format ? 'application/json':'application/xhtml+xml';
+        $response->headers->set('Content-Type', $contentType);
         if (! $this->isPrivate() ) {
             $response->setPublic();
         }
diff --git a/README.md b/README.md
index bc94d6c..dead6bb 100644
--- a/README.md
+++ b/README.md
@@ -30,11 +30,24 @@ You can try rss-atom-bundle through its [Demo](https://rss-atom-demo.herokuapp.c
 
 As a Symfony Bundle, RssAtomBundle must be installed using Composer. If you do not know Composer, please refer to its website: http://getcomposer.org/
 
-### Installation in a Symfony project
+### Your application uses Symfony 3.3 or later
 
-This is the most common way if you want to add RssAtomBundle into an existing project.
+Activate Symfony's [contrib recipes](https://github.com/symfony/recipes-contrib) and use Composer to require the bundle :
 
-    composer require debril/rss-atom-bundle
+```shell
+composer config extra.symfony.allow-contrib true
+composer require debril/rss-atom-bundle
+```
+
+That's it. To check the installation, you can start your application and hit http://localhost:8000/rss in your browser. You should see a mock RSS stream.
+
+### If your application uses Symfony < 3.3
+
+Install the bundle using Composer :
+
+```shell
+composer require debril/rss-atom-bundle
+```
 
 Add the bundle's routing configuration in app/config/routing.yml :
 
@@ -43,7 +56,6 @@ rssatom:
     resource: "@DebrilRssAtomBundle/Resources/config/routing.yml"
 
 ```
-#### If your application uses Symfony < 3.3
 
 Edit your app/AppKernel.php to register the bundle in the registerBundles() method as above:
 
@@ -61,8 +73,6 @@ class AppKernel extends Kernel
             new Debril\RssAtomBundle\DebrilRssAtomBundle(),
 ```
 
-This step will not be necessary anymore starting from Symfony 3.3.
-
 ## Usage
 
 rss-atom-bundle is designed to read feeds across the internet and to publish your own using [feed-io](https://github.com/alexdebril/feed-io)
diff --git a/Resources/config/routing.yml b/Resources/config/routing.yml
index 42338b6..e1f3357 100644
--- a/Resources/config/routing.yml
+++ b/Resources/config/routing.yml
@@ -12,7 +12,7 @@ feed_atom:
     defaults: { _controller: DebrilRssAtomBundle:Stream:index, "format": 'atom', "id": null }
 
 feed_json:
-    path: /atom/{id}
+    path: /json/{id}
     defaults: { _controller: DebrilRssAtomBundle:Stream:index, "format": 'json', "id": null }
 
 feed_mock:
diff --git a/Tests/Controller/StreamControllerTest.php b/Tests/Controller/StreamControllerTest.php
index fb022bb..8b4986f 100644
--- a/Tests/Controller/StreamControllerTest.php
+++ b/Tests/Controller/StreamControllerTest.php
@@ -50,6 +50,7 @@ public function testGetAtom()
 
         $response = $client->getResponse();
         $this->assertEquals('200', $response->getStatusCode());
+        $this->assertEquals('application/xhtml+xml', $response->headers->get('content-type'));
 
         $atom = new Document($response->getContent());
 
@@ -65,6 +66,7 @@ public function testGetRss()
 
         $response = $client->getResponse();
         $this->assertEquals('200', $response->getStatusCode());
+        $this->assertEquals('application/xhtml+xml', $response->headers->get('content-type'));
 
         $rss = new Document($response->getContent());
 
@@ -79,7 +81,9 @@ public function testGetJson()
         $client->request('GET', '/json/1');
 
         $response = $client->getResponse();
+
         $this->assertEquals('200', $response->getStatusCode());
+        $this->assertEquals('application/json', $response->headers->get('content-type'));
 
         $json = new Document($response->getContent());