diff --git a/application/modules/admin/controllers/BibnumController.php b/application/modules/admin/controllers/BibnumController.php
index 5f2f5363b29ae2af72ba7aff6c5e4662ff107ba3..90821b401bc64c8f3d808660df34babadb4d05cb 100644
--- a/application/modules/admin/controllers/BibnumController.php
+++ b/application/modules/admin/controllers/BibnumController.php
@@ -26,28 +26,21 @@ class Admin_BibnumController extends ZendAfi_Controller_Action {
   }
 
   public function collectionsAction() {
-    $this->_helper->viewRenderer->setNoRender();
-
     $categories = Class_AlbumCategorie::getCollections();
 
     $categories[] = Class_AlbumCategorie::defaultCategory()
       ->setAlbums(Class_Album::findAllBy(['cat_id' => 0]));
 
-    $jsons = [];
+    $albums = [];
     foreach ($categories as $category) {
-      $jsons[] = $category->toJson();
+      $albums[] = $category->toArray();
     }
 
     $bib = Class_Bib::getPortail();
 
-    $jsons =  '{'.
-      '"id":'.$bib->getId().','.
-      '"label": "'.htmlspecialchars($bib->getLibelle()).'",'.
-      '"categories": ['.implode(",", $jsons).'],'.
-      '"items": []'.
-      '}';
-
-    $this->getResponse()->setHeader('Content-Type', 'application/json; charset=utf-8');
-    $this->getResponse()->setBody('[' . $jsons .']');
+    $this->_helper->json([['id' => $bib->getId(),
+                          'label' => htmlspecialchars($bib->getLibelle()),
+                          'categories' => $albums,
+                          'items' => []]]);
   }
 }
\ No newline at end of file
diff --git a/library/Class/AlbumCategorie.php b/library/Class/AlbumCategorie.php
index 149abd0887a772c12830e36ee08c064d70e61533..ac9554c0c208e21b77bfac15dda31fca8120ace4 100644
--- a/library/Class/AlbumCategorie.php
+++ b/library/Class/AlbumCategorie.php
@@ -244,24 +244,22 @@ class Class_AlbumCategorie extends Storm_Model_Abstract {
   }
 
 
-  public function albumsToJSON($albums) {
+  public function albumsToArray($albums) {
 
-    $json_albums = [];
+    $albums_array = [];
     foreach ($albums as $album) {
-      $json_albums []= $album->toJSON();
+      $albums_array []= $album->toArray();
     }
 
-    return $json_albums;
+    return $albums_array;
   }
 
 
-  public function toJSON() {
+  public function toArray() {
     return
-      '{'.
-      '"id":'.$this->getId().','.
-      '"label": "'.htmlspecialchars($this->getLibelle()).'",'.
-      '"categories": ['.implode(",", $this->albumsToJSON($this->getSousCategories())).'],'.
-      '"items": []'.
-      '}';
+      ['id' => $this->getId(),
+       'label' => htmlspecialchars($this->getLibelle()),
+       'categories' => $this->albumsToArray($this->getSousCategories()),
+       'items' => []];
   }
 }
\ No newline at end of file
diff --git a/library/ZendAfi/View/Helper/Accueil/BibNumerique.php b/library/ZendAfi/View/Helper/Accueil/BibNumerique.php
index 8815a422e5f59b3bbeb08ae4f8b0298eeb6faf8c..7738897583cf5fdb3607875c799de4fda209b7d9 100644
--- a/library/ZendAfi/View/Helper/Accueil/BibNumerique.php
+++ b/library/ZendAfi/View/Helper/Accueil/BibNumerique.php
@@ -172,17 +172,13 @@ class BibNumDisplayStrategy {
 
 class BibNumAlbumTeaserStrategy extends BibNumDisplayStrategy {
   public function getContent() {
-    $contenu = $this->displayNumericRessources();
-
-    if ($contenu)
+    if ($contenu = $this->displayNumericRessources())
       return $contenu;
 
 		if ($this->accueil_bibnum->isDisplayDiaporama() or $this->accueil_bibnum->isDisplayListe())
-			$contenu .= $this->accueil_bibnum->getSlideshow()->renderAlbumMedias();
-    else
-			$contenu .= sprintf('<div id="booklet_%d" class="bib-num-album"></div>', $this->id_module);
+			return $contenu . $this->accueil_bibnum->getSlideshow()->renderAlbumMedias();
 
-    return $contenu;
+    return $contenu . sprintf('<div id="booklet_%d" class="bib-num-album"></div>', $this->id_module);
   }
 
   public function getTitle() {
@@ -286,7 +282,6 @@ class BibNumPaginatedStrategy extends BibNumDisplayStrategy {
                     'id_module' => $this->id_module,
                     'id_division' => $this->division];
 
-    xdebug_break();
     if (Class_Systeme_ModulesAccueil_BibliothequeNumerique::ORDER_RANDOM == $this->preferences['display_order'])
       return $this->view->tagAnchor($reload_link,
                                     '',
diff --git a/tests/application/modules/admin/controllers/BibnumControllerTest.php b/tests/application/modules/admin/controllers/BibnumControllerTest.php
index 3580e83c780a147d3c578394bbeaeb96fe908da2..143f7396044804a111545b99518b1fe599b8d538 100644
--- a/tests/application/modules/admin/controllers/BibnumControllerTest.php
+++ b/tests/application/modules/admin/controllers/BibnumControllerTest.php
@@ -88,9 +88,34 @@ class Admin_BibnumControllerTreeSelectTest extends Admin_AbstractControllerTestC
 
   /** @test */
   public function jsonShouldContainsNatureAndFaune() {
-    $expected = '[{"id":0,"label": "Portail","categories": [{"id":6,"label": "arbre","categories": [],"items": []},{"id":2,"label": "nature","categories": [{"id":4,"label": "faune","categories": [{"id":6,"label": "arbre","categories": [],"items": []}],"items": []}],"items": []},{"id":0,"label": "Albums non classés","categories": [],"items": []}],"items": []}]';
 
-
-    $this->assertEquals($expected, $this->_response->getBody());
+    $expected = [['id' => 0,
+                 'label' => 'Portail',
+                 'categories' => [
+                                  ['id' => 6,
+                                   'label' => 'arbre',
+                                   'categories' => [],
+                                   'items' => []],
+
+                                  ['id' => 2,
+                                   'label' => 'nature',
+                                   'categories' => [
+                                                    ['id' => 4,
+                                                     'label' => 'faune',
+                                                     'categories' => [
+                                                                      ['id' => 6,
+                                                                       'label' => 'arbre',
+                                                                       'categories' => [],
+                                                                       'items' => []]],
+                                                     'items' => []]],
+                                   'items' => []],
+
+                                  ['id' => 0,
+                                   'label' => 'Albums non classés',
+                                   'categories' => [],
+                                   'items' => []]],
+                  'items' => []]];
+
+    $this->assertEquals(json_encode($expected), $this->_response->getBody());
   }
 }
\ No newline at end of file