diff --git a/resources/lang/en/meta.yaml b/resources/lang/en/meta.yaml
new file mode 100644
index 0000000..641315d
--- /dev/null
+++ b/resources/lang/en/meta.yaml
@@ -0,0 +1 @@
+extended_locale: fr-FR
diff --git a/resources/lang/en/ui.yaml b/resources/lang/en/ui.yaml
index b1a4b65..db5af40 100644
--- a/resources/lang/en/ui.yaml
+++ b/resources/lang/en/ui.yaml
@@ -96,7 +96,6 @@ tutorials:
   title: Tutorials
   description: You'll find tutorials on how to build the PaxoPhone and other Paxo projects.
   last_update: Last update
-  date_format: en-US
 
 contributors:
   seo_description: List of Paxo contributors.
diff --git a/resources/lang/fr/meta.yaml b/resources/lang/fr/meta.yaml
new file mode 100644
index 0000000..4fdea12
--- /dev/null
+++ b/resources/lang/fr/meta.yaml
@@ -0,0 +1 @@
+extended_locale: en-US
diff --git a/resources/lang/fr/ui.yaml b/resources/lang/fr/ui.yaml
index 7b3e34a..24a1b45 100644
--- a/resources/lang/fr/ui.yaml
+++ b/resources/lang/fr/ui.yaml
@@ -101,7 +101,6 @@ tutorials:
   title: Tutoriels
   description: Vous trouverez les tutos pour la conception du PaxoPhone ainsi que les autres projets signés Paxo.
   last_update: Dernière mise à jour
-  date_format: fr-FR
 
 contributors:
   seo_description: Liste des contributeurs au projet Paxo.
diff --git a/resources/views/tutorials/index.edge b/resources/views/tutorials/index.edge
index 7c34f83..8c9b513 100644
--- a/resources/views/tutorials/index.edge
+++ b/resources/views/tutorials/index.edge
@@ -1,12 +1,11 @@
 @!layout('base/main')
 
 @section('title')
- {{ t("ui.tutorials.title") }}
+{{ t("ui.tutorials.title") }}
 @endsection
 
 @section('seo')
-<meta name="description"
-  content="{{ t("ui.tutorials.seo_description") }}">
+<meta name="description" content="{{ t(" ui.tutorials.seo_description") }}">
 <meta name="robots" content="index">
 @endsection
 
@@ -23,7 +22,9 @@
       <div class="card">
         <div>
           <div class="card-title">{{ tutorial.name }}</div>
-          <div class="card-description">{{ tutorial.description }} ({{ t("ui.tutorials.last_update") }} : {{ tutorial.updatedAt.toLocaleString({year:'numeric',month:'numeric',day:'numeric',hour:'numeric',minute:'numeric'}, {locale: '{{ ui.tutorials.date_format }}'}) }})</div>
+          <div class="card-description">{{ tutorial.description }} ({{ t("ui.tutorials.last_update") }} : {{
+            tutorial.updatedAt.toLocaleString({year:'numeric',month:'numeric',day:'numeric',hour:'numeric',minute:'numeric'},
+            { locale: t('meta.extended_locale') }) }})</div>
         </div>
       </div>
     </a>