diff --git a/app/ModelSerializers/SilverStripeSerializer.php b/app/ModelSerializers/SilverStripeSerializer.php
index 2f390e37..5532c3da 100644
--- a/app/ModelSerializers/SilverStripeSerializer.php
+++ b/app/ModelSerializers/SilverStripeSerializer.php
@@ -19,8 +19,8 @@ use Libs\ModelSerializers\AbstractSerializer;
 class SilverStripeSerializer extends AbstractSerializer
 {
     protected static $array_mappings = [
-        'Id'         => 'id:json_int',
-        'CreatedUTC' => 'created:datetime_epoch',
+        'Id'            => 'id:json_int',
+        'CreatedUTC'    => 'created:datetime_epoch',
         'LastEditedUTC' => 'last_edited:datetime_epoch',
     ];
 }
\ No newline at end of file
diff --git a/app/ModelSerializers/Summit/Presentation/PresentationMaterialSerializer.php b/app/ModelSerializers/Summit/Presentation/PresentationMaterialSerializer.php
index 92fd3e00..c1db1db1 100644
--- a/app/ModelSerializers/Summit/Presentation/PresentationMaterialSerializer.php
+++ b/app/ModelSerializers/Summit/Presentation/PresentationMaterialSerializer.php
@@ -20,13 +20,13 @@
 class PresentationMaterialSerializer extends SilverStripeSerializer
 {
 
-    protected static $array_mappings = array
-    (
+    protected static $array_mappings = [
         'Name'           => 'name:json_text',
         'Description'    => 'description:json_text',
         'DisplayOnSite'  => 'display_on_site:json_boolean',
         'Featured'       => 'featured:json_boolean',
         'Order'          => 'order:json_int',
         'PresentationId' => 'presentation_id:json_int',
-    );
+        'ClassName'      =>  'class_name:json_text',
+    ];
 }
\ No newline at end of file
diff --git a/app/Models/Foundation/Summit/Events/Presentations/Materials/PresentationLink.php b/app/Models/Foundation/Summit/Events/Presentations/Materials/PresentationLink.php
index bbefb953..d910c847 100644
--- a/app/Models/Foundation/Summit/Events/Presentations/Materials/PresentationLink.php
+++ b/app/Models/Foundation/Summit/Events/Presentations/Materials/PresentationLink.php
@@ -12,7 +12,6 @@
  * limitations under the License.
  **/
 use Doctrine\ORM\Mapping AS ORM;
-
 /**
  * Class PresentationLink
  * @ORM\Entity