diff --git a/app/Http/Controllers/ContactController.php b/app/Http/Controllers/ContactController.php
index 7409112..5bdcb46 100644
--- a/app/Http/Controllers/ContactController.php
+++ b/app/Http/Controllers/ContactController.php
@@ -38,25 +38,29 @@ class ContactController extends Controller
      *
      * @param ContactFormRequest $request
      * @return \Illuminate\Http\Response
+     * @throws \RuntimeException If email missing.
      */
     public function contactSubmit(ContactFormRequest $request)
     {
-        $data = $request->all();
-
-        /** @var Magasin|null */
+        /** @var \App\Model\Magasin|null */
         $shop = Magasin::where('name', $request->shop)->first();
 
-        if ($shop && $shop->email_contact) {
+        if ($shop and $shop->email_contact) {
+            /** @var string */
             $toMail = $shop->email_contact;
         } else {
-            $toMailSetting = Setting::where('key', 'send_contact_mail_to')->first();
-            if (empty($toMailSetting->value)) {
+            /** @var string|null */
+            $toMail = \optional(Setting::where('key', 'send_contact_mail_to')->first())->value;
+            if (!$toMail) {
+                /** @var string|null */
                 $toMail = config('mail.from.address');
-            } else {
-                $toMail = $toMailSetting->value;
             }
         }
 
+        if (!$toMail) {
+            throw new \RuntimeException('Impossible de trouver un mail');
+        }
+
         // Envoi du mail d'alerte.
         Mail::to($toMail)->send(new SendContactMail($request));