diff --git a/src/Exceptions/TenantDatabaseDoesNotExistException.php b/src/Exceptions/TenantDatabaseDoesNotExistException.php
index 8bd15fd3..2f6df0f9 100644
--- a/src/Exceptions/TenantDatabaseDoesNotExistException.php
+++ b/src/Exceptions/TenantDatabaseDoesNotExistException.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Stancl\Tenancy\Exceptions;
 
 use Exception;