diff --git a/Form/ChoiceLoader/PostalCodeChoiceLoader.php b/Form/ChoiceLoader/PostalCodeChoiceLoader.php
index 4b52ba38c..add74809e 100644
--- a/Form/ChoiceLoader/PostalCodeChoiceLoader.php
+++ b/Form/ChoiceLoader/PostalCodeChoiceLoader.php
@@ -1,4 +1,5 @@
 <?php
+
 /*
  * Copyright (C) 2018 Champs-Libres <info@champs-libres.coop>
  *
@@ -15,34 +16,46 @@
  * You should have received a copy of the GNU Affero General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
+
 namespace Chill\MainBundle\Form\ChoiceLoader;
 
 use Symfony\Component\Form\ChoiceList\Loader\ChoiceLoaderInterface;
 use Symfony\Component\Form\ChoiceList\ChoiceListInterface;
 use Chill\MainBundle\Repository\PostalCodeRepository;
-use Symfony\Component\Form\ChoiceList\LazyChoiceList;
 use Chill\MainBundle\Entity\PostalCode;
 
 /**
- * 
+ * Class PostalCodeChoiceLoader
  *
+ * @package Chill\MainBundle\Form\ChoiceLoader
  * @author Julien Fastré <julien.fastre@champs-libres.coop>
  */
 class PostalCodeChoiceLoader implements ChoiceLoaderInterface
 {
     /**
-     *
      * @var PostalCodeRepository
      */
     protected $postalCodeRepository;
     
+    /**
+     * @var array
+     */
     protected $lazyLoadedPostalCodes = [];
     
+    /**
+     * PostalCodeChoiceLoader constructor.
+     *
+     * @param PostalCodeRepository $postalCodeRepository
+     */
     public function __construct(PostalCodeRepository $postalCodeRepository)
     {
         $this->postalCodeRepository = $postalCodeRepository;
     }
-
+    
+    /**
+     * @param null $value
+     * @return ChoiceListInterface
+     */
     public function loadChoiceList($value = null): ChoiceListInterface
     {
         $list = new \Symfony\Component\Form\ChoiceList\ArrayChoiceList(
@@ -53,7 +66,12 @@ class PostalCodeChoiceLoader implements ChoiceLoaderInterface
         
         return $list;
     }
-
+    
+    /**
+     * @param array $values
+     * @param null $value
+     * @return array
+     */
     public function loadChoicesForValues(array $values, $value = null)
     {
         $choices = [];
@@ -69,6 +87,11 @@ class PostalCodeChoiceLoader implements ChoiceLoaderInterface
         return $choices;
     }
     
+    /**
+     * @param array $choices
+     * @param null $value
+     * @return array|string[]
+     */
     public function loadValuesForChoices(array $choices, $value = null)
     {
         $values = [];