diff --git a/Service/CustomFieldsHelper.php b/Service/CustomFieldsHelper.php
index 7baa48616..f5bc2cc2e 100644
--- a/Service/CustomFieldsHelper.php
+++ b/Service/CustomFieldsHelper.php
@@ -63,10 +63,11 @@ class CustomFieldsHelper
     {
         $slug = $customField->getSlug();
         $rawValue = (isset($fields[$slug])) ? $fields[$slug] : null;
-        
         $customFieldType =  $this->provider->getCustomFieldByType($customField->getType());
         
-        return $customFieldType->isEmptyValue($rawValue, $customField);
+        $deserializedValue = $customFieldType->deserialize($rawValue, $customField);
+        
+        return $customFieldType->isEmptyValue($deserializedValue, $customField);
     }
     
     /**