diff --git a/src/Configuration/Content/ContentType.php b/src/Configuration/Content/ContentType.php
index 20375101a..7102b2bbd 100644
--- a/src/Configuration/Content/ContentType.php
+++ b/src/Configuration/Content/ContentType.php
@@ -38,7 +38,7 @@ public static function factory(?string $name, Collection $contentTypesConfig): s
             'slug' => $name,
             'singular_slug' => $name,
             'singular_name' => $name,
-            'locales' => [],
+            'locales' => new Collection(),
             'fields' => new Collection(),
             // when it is created on the fly
             'virtual' => true,
diff --git a/src/Twig/ContentExtension.php b/src/Twig/ContentExtension.php
index 688ffbac9..80181fa51 100644
--- a/src/Twig/ContentExtension.php
+++ b/src/Twig/ContentExtension.php
@@ -287,7 +287,8 @@ public function getExcerpt($content, int $length = 280, bool $includeTitle = fal
 
     public function getListFormat($content)
     {
-        $listFormat = $this->contentHelper->get($content, $content->getDefinition()->get('list_format'));
+        $format = $content->getDefinition()->get('list_format', '[{contenttype} Nº {id} - {status}] {title}');
+        $listFormat = $this->contentHelper->get($content, $format);
 
         return $listFormat;
     }