diff --git a/docs/resource/processors.md b/docs/resource/processors.md
index 0c84a82d..b19a2121 100644
--- a/docs/resource/processors.md
+++ b/docs/resource/processors.md
@@ -33,10 +33,17 @@ As an example, send an email after customer registration
 
 {% code title="src/Sylius/State/Processor/CreateCustomerProcessor.php" lineNumbers="true" %}
 ```php
+<?php
+
+declare(strict_types=1);
+
 namespace App\Sylius\State\Processor;
 
+// ...
+use Sylius\Resource\Context\Context;
 use Sylius\Component\Customer\Model\CustomerInterface;
 use Sylius\Resource\Doctrine\Common\State\PersistProcessor;
+use Sylius\Resource\Metadata\Operation;
 use Sylius\Resource\State\ProcessorInterface;
 
 final class CreateCustomerProcessor implements ProcessorInterface