diff --git a/.travis.yml b/.travis.yml
index ac9f3a8..4db50ea 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,7 +9,7 @@ env:
 
 before_script:
   - wget http://getcomposer.org/composer.phar
-  - php composer.phar require symfony/framework-bundle:${SYMFONY_VERSION}
+  - php composer.phar require symfony/symfony:${SYMFONY_VERSION}
   - php composer.phar --dev install
 
 script:
diff --git a/Serializer/XmlFormViewSerializer.php b/Serializer/XmlFormViewSerializer.php
index 055542e..9b053c0 100644
--- a/Serializer/XmlFormViewSerializer.php
+++ b/Serializer/XmlFormViewSerializer.php
@@ -200,26 +200,30 @@ protected function serializeWidgetSimple(\DOMElement $parentElement, FormView $v
     */
     protected function addWidgetAttributes(\DOMElement $widgetElement, FormView $view, $variables)
     {
-        $widgetElement->setAttribute('name', $variables['full_name']);
+        if (!isset($variables['prototype'])) {
+            $widgetElement->setAttribute('name', $variables['full_name']);
 
-        if ($variables['read_only']) {
-            $widgetElement->setAttribute('readonly', 'readonly');
-        }
+            if ($variables['read_only']) {
+                $widgetElement->setAttribute('readonly', 'readonly');
+            }
 
-        if ($variables['disabled']) {
-            $widgetElement->setAttribute('disabled', 'disabled');
-        }
+            if ($variables['disabled']) {
+                $widgetElement->setAttribute('disabled', 'disabled');
+            }
 
-        if ($variables['required']) {
-            $widgetElement->setAttribute('required', 'required');
-        }
+            if ($variables['required']) {
+                $widgetElement->setAttribute('required', 'required');
+            }
 
-        if ($variables['max_length']) {
-            $widgetElement->setAttribute('maxlength', $variables['max_length']);
-        }
+            if ($variables['max_length']) {
+                $widgetElement->setAttribute('maxlength', $variables['max_length']);
+            }
 
-        if ($variables['pattern']) {
-            $widgetElement->setAttribute('pattern', $variables['pattern']);
+            if ($variables['pattern']) {
+                $widgetElement->setAttribute('pattern', $variables['pattern']);
+            }
+        } else {
+            $widgetElement->setAttribute('id', $variables['id']);
         }
 
         foreach ($variables['attr'] as $name => $value) {
@@ -480,14 +484,30 @@ protected function serializeFormRows(\DOMElement $parentElement, FormView $view,
     protected function serializeCollectionWidget(\DOMElement $parentElement, FormView $view, $variables)
     {
         if (isset($variables['prototype'])) {
-            // TODO test this ?
-            var_dump($variables['prototype']);exit;
-            $variables['attr'] = array_merge($variables['attr'], array(
-                'data-prototype' => $this->renderer->searchAndRenderBlock($variables['prototype'], 'row'),
-            ));
+            $this->serializePrototype($parentElement, $view, $variables);
         }
-
         $this->serializeFormWidget($parentElement, $view, $variables);
+
+    }
+
+    protected function serializePrototype(\DOMElement $parentElement, FormView $view, $variables)
+    {
+        $document = new \DOMDocument('1.0', 'UTF-8');
+
+        $divElement = $document->createElement('div');
+        $divElement->setAttribute('id',$variables['id'].'___name__');
+
+        $this->serializeBlock($divElement,$variables['prototype'], 'row');
+
+        $ulElement = $parentElement->ownerDocument->createElement('ul');
+
+        $variables['attr'] = array_merge($variables['attr'], array(
+            'data-prototype' => htmlentities($document->saveHTML($divElement), ENT_QUOTES, 'UTF-8')
+        ));
+
+        $this->addWidgetAttributes($ulElement, $view, $variables);
+
+        $parentElement->appendChild($ulElement);
     }
 
     /*
diff --git a/Tests/Functional/Serializer/XmlFormViewSerializerTest.php b/Tests/Functional/Serializer/XmlFormViewSerializerTest.php
index fa663a6..2541454 100644
--- a/Tests/Functional/Serializer/XmlFormViewSerializerTest.php
+++ b/Tests/Functional/Serializer/XmlFormViewSerializerTest.php
@@ -4,6 +4,10 @@
 
 use FSC\HateoasBundle\Tests\Functional\TestCase;
 use FSC\HateoasBundle\Serializer\XmlFormViewSerializer;
+use Symfony\Component\OptionsResolver\OptionsResolverInterface;
+use Symfony\Component\Form\AbstractType;
+use Symfony\Component\Form\FormBuilderInterface;
+
 
 /**
  * @group functional
@@ -106,8 +110,36 @@ public function testFileType()
             , $formElement);
     }
 
+    public function testCollectionType()
+    {
+        $formFactory = $this->getKernel()->getContainer()->get('form.factory');
+
+        $form = $formFactory->createBuilder('form')
+            ->add('service', 'collection', array(
+                'type'         => new availabilityFormType(),
+                'allow_add' => true
+            ))
+            ->getForm();
+
+        $formView = $form->createView();
+
+        $xmlFormViewSerializer = new XmlFormViewSerializer();
+
+        $xmlFormViewSerializer->serialize($formView, $formElement = $this->createFormElement());
+
+        $this->assertXmlElementEquals(<<<XML
+<form>
+    <ul id="form_service" data-prototype="&amp;lt;div id=&amp;quot;form_service___name__&amp;quot;&amp;gt;&#10;&amp;lt;input type=&amp;quot;text&amp;quot; name=&amp;quot;form[service][__name__][timeId]&amp;quot; required=&amp;quot;required&amp;quot;&amp;gt;&amp;lt;input type=&amp;quot;text&amp;quot; name=&amp;quot;form[service][__name__][dayId]&amp;quot; required=&amp;quot;required&amp;quot;&amp;gt;&#10;&amp;lt;/div&amp;gt;"/>
+</form>
+XML
+            , $formElement);
+    }
+
     public function testDateFields()
     {
+        // force locale for PHP_INTL DateTime
+        locale_set_default('en-US');
+
         $formFactory = $this->getKernel()->getContainer()->get('form.factory');
         $form = $formFactory->createBuilder('form')
             ->add('publishedAt', 'date', array(
@@ -398,3 +430,23 @@ protected function createFormElement()
         return $domDocument->createElement('form');
     }
 }
+
+class availabilityFormType extends AbstractType
+{
+
+    public function buildForm(FormBuilderInterface $builder, array $options)
+    {
+        $builder->add('timeId');
+        $builder->add('dayId');
+    }
+
+    public function setDefaultOptions(OptionsResolverInterface $resolver)
+    {
+        $resolver->setDefaults(array());
+    }
+    public function getName()
+    {
+        return 'availability';
+    }
+
+}
\ No newline at end of file
diff --git a/Tests/Functional/config/config.yml b/Tests/Functional/config/config.yml
index c2cacaf..465065e 100644
--- a/Tests/Functional/config/config.yml
+++ b/Tests/Functional/config/config.yml
@@ -7,3 +7,4 @@ framework:
         resource: "%kernel.root_dir%/config/routing.yml"
     form: ~
     validation: ~
+    csrf_protection: false