diff --git a/module/Core/test-db/ShortUrl/Repository/ShortUrlRepositoryTest.php b/module/Core/test-db/ShortUrl/Repository/ShortUrlRepositoryTest.php
index f2cce0f7..da1755ac 100644
--- a/module/Core/test-db/ShortUrl/Repository/ShortUrlRepositoryTest.php
+++ b/module/Core/test-db/ShortUrl/Repository/ShortUrlRepositoryTest.php
@@ -395,7 +395,7 @@ class ShortUrlRepositoryTest extends DatabaseTestCase
     #[Test]
     public function importedShortUrlsAreFoundWhenExpected(): void
     {
-        $buildImported = static fn (string $shortCode, ?String $domain = null) =>
+        $buildImported = static fn (string $shortCode, ?string $domain = null) =>
             new ImportedShlinkUrl(ImportSource::BITLY, 'foo', [], Chronos::now(), $domain, $shortCode, null);
 
         $shortUrlWithoutDomain = ShortUrl::fromImport($buildImported('my-cool-slug'), true);
diff --git a/module/Rest/src/ApiKey/Spec/WithInlinedApiKeySpecsEnsuringJoin.php b/module/Rest/src/ApiKey/Spec/WithInlinedApiKeySpecsEnsuringJoin.php
deleted file mode 100644
index 2e84d835..00000000
--- a/module/Rest/src/ApiKey/Spec/WithInlinedApiKeySpecsEnsuringJoin.php
+++ /dev/null
@@ -1,26 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Shlinkio\Shlink\Rest\ApiKey\Spec;
-
-use Happyr\DoctrineSpecification\Spec;
-use Happyr\DoctrineSpecification\Specification\BaseSpecification;
-use Happyr\DoctrineSpecification\Specification\Specification;
-use Shlinkio\Shlink\Rest\Entity\ApiKey;
-
-class WithInlinedApiKeySpecsEnsuringJoin extends BaseSpecification
-{
-    public function __construct(private readonly ?ApiKey $apiKey, private readonly string $fieldToJoin = 'shortUrls')
-    {
-        parent::__construct();
-    }
-
-    protected function getSpec(): Specification
-    {
-        return $this->apiKey === null || $this->apiKey->isAdmin() ? Spec::andX() : Spec::andX(
-            Spec::join($this->fieldToJoin, 's'),
-            $this->apiKey->inlinedSpec(),
-        );
-    }
-}