diff --git a/test/ComposerRequireCheckerTest/Cli/CheckCommandTest.php b/test/ComposerRequireCheckerTest/Cli/CheckCommandTest.php
index 5b5d19c9..929f0871 100644
--- a/test/ComposerRequireCheckerTest/Cli/CheckCommandTest.php
+++ b/test/ComposerRequireCheckerTest/Cli/CheckCommandTest.php
@@ -153,6 +153,15 @@ public function testSourceFileThatUsesDevDependency(): void
         );
     }
 
+    public function testAutoloadedFiles(): void
+    {
+        $this->commandTester->execute([
+            'composer-json' => dirname(__DIR__, 2) . '/fixtures/autoloadedFiles/composer.json',
+        ]);
+
+        self::assertSame(Command::SUCCESS, $this->commandTester->getStatusCode());
+    }
+
     public function testNoUnknownSymbolsFound(): void
     {
         $this->commandTester->execute([
diff --git a/test/fixtures/autoloadedFiles/composer.json b/test/fixtures/autoloadedFiles/composer.json
new file mode 100644
index 00000000..cb459f94
--- /dev/null
+++ b/test/fixtures/autoloadedFiles/composer.json
@@ -0,0 +1,6 @@
+{
+    "name": "example/library",
+    "autoload": {
+        "files": ["src/include.php"]
+    }
+}
diff --git a/test/fixtures/autoloadedFiles/src/include.php b/test/fixtures/autoloadedFiles/src/include.php
new file mode 100644
index 00000000..fbed2896
--- /dev/null
+++ b/test/fixtures/autoloadedFiles/src/include.php
@@ -0,0 +1,5 @@
+<?php
+
+declare(strict_types=1);
+
+require_once __DIR__ . '/noop.php';
diff --git a/test/fixtures/autoloadedFiles/src/noop.php b/test/fixtures/autoloadedFiles/src/noop.php
new file mode 100644
index 00000000..1efce702
--- /dev/null
+++ b/test/fixtures/autoloadedFiles/src/noop.php
@@ -0,0 +1,9 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Project\Functions;
+
+function noop() : void
+{
+}
diff --git a/test/fixtures/autoloadedFiles/vendor/composer/installed.json b/test/fixtures/autoloadedFiles/vendor/composer/installed.json
new file mode 100644
index 00000000..fe51488c
--- /dev/null
+++ b/test/fixtures/autoloadedFiles/vendor/composer/installed.json
@@ -0,0 +1 @@
+[]