diff --git a/stubs/FortifyServiceProvider.php b/stubs/FortifyServiceProvider.php
index dd292143..9f2f3c11 100644
--- a/stubs/FortifyServiceProvider.php
+++ b/stubs/FortifyServiceProvider.php
@@ -37,7 +37,9 @@ public function boot()
         Fortify::resetUserPasswordsUsing(ResetUserPassword::class);
 
         RateLimiter::for('login', function (Request $request) {
-            return Limit::perMinute(5)->by($request->email.$request->ip());
+            $email = (string) $request->email;
+
+            return Limit::perMinute(5)->by($email.$request->ip());
         });
 
         RateLimiter::for('two-factor', function (Request $request) {