diff --git a/src/TenancyBootstrappers/QueueTenancyBootstrapper.php b/src/TenancyBootstrappers/QueueTenancyBootstrapper.php
index 3fa95e0a..a4258445 100644
--- a/src/TenancyBootstrappers/QueueTenancyBootstrapper.php
+++ b/src/TenancyBootstrappers/QueueTenancyBootstrapper.php
@@ -1,12 +1,14 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Stancl\Tenancy\TenancyBoostrappers;
 
 use Stancl\Tenancy\Contracts\TenancyBootstrapper;
 
 class QueueTenancyBootstrapper implements TenancyBootstrapper
 {
-    /** @var boolean Has tenancy been started. */
+    /** @var bool Has tenancy been started. */
     protected $started = false; // todo var name?
 
     /** @var Application */
@@ -50,4 +52,4 @@ class QueueTenancyBootstrapper implements TenancyBootstrapper
             ],
         ];
     }
-}
\ No newline at end of file
+}