diff --git a/config/session.php b/config/session.php
index f715097f8..f348f5f8c 100644
--- a/config/session.php
+++ b/config/session.php
@@ -129,7 +129,7 @@ return [
 
     'cookie' => env(
         'SESSION_COOKIE',
-        Str::slug(env('APP_NAME', 'laravel')).'-session'
+        Str::snake((string) env('APP_NAME', 'laravel')).'_session'
     ),
 
     /*