diff --git a/fixtures/autoload-strategy/packages/dex/fake/composer.json b/fixtures/autoload-strategy/packages/dex/fake/composer.json
index e800c2c..8f42f91 100644
--- a/fixtures/autoload-strategy/packages/dex/fake/composer.json
+++ b/fixtures/autoload-strategy/packages/dex/fake/composer.json
@@ -9,7 +9,8 @@
     "autoload": {
         "psr-4": {
             "Dex\\Fake\\": "src/"
-        }
+        },
+        "files": ["scripts/start.php"]
     },
     "autoload-dev": {
         "psr-4": {
diff --git a/src/Composer/Factory.php b/src/Composer/Factory.php
index 6f02739..a216145 100644
--- a/src/Composer/Factory.php
+++ b/src/Composer/Factory.php
@@ -203,6 +203,11 @@ private function definePluggedAndIgnoredPackages(IOInterface $io, array &$plugge
                     $localConfig['autoload']['psr-4'][$namespace] = dirname($package) . DIRECTORY_SEPARATOR . $directory;
                 }
 
+                foreach ($data['autoload']['files'] ?? [] as $file) {
+                    $localConfig['autoload']['files'] ??= [];
+                    $localConfig['autoload']['files'][] = dirname($package) . DIRECTORY_SEPARATOR . $file;
+                }
+
                 if (in_array($data['name'], $autoloadDev)) {
                     foreach ($data['autoload-dev']['psr-4'] ?? [] as $namespace => $directory) {
                         $localConfig['autoload-dev']['psr-4'][$namespace] = dirname($package) . DIRECTORY_SEPARATOR . $directory;
@@ -239,14 +244,14 @@ private function filesystem(): Filesystem
 
     private function experimentalAutoloadStrategy(array $data): void
     {
-        $this->filesystem()->ensureDirectoryExists(PlugAndPlayInterface::PACKAGES_VENDOR . $data['name']);
+        $this->filesystem()->ensureDirectoryExists(PlugAndPlayInterface::PACKAGES_VENDOR . '/' . $data['name']);
 
         unset($data['autoload']);
         unset($data['autoload-dev']);
 
         $json = json_encode($data, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE) . PHP_EOL;
 
-        file_put_contents(PlugAndPlayInterface::PACKAGES_VENDOR . $data['name'] . '/composer.json', $json);
+        file_put_contents(PlugAndPlayInterface::PACKAGES_VENDOR . '/' . $data['name'] . '/composer.json', $json);
     }
 
     /**
diff --git a/tests/Composer/Factory/AutoloadStrategyTest.php b/tests/Composer/Factory/AutoloadStrategyTest.php
index a543620..db0c3ec 100644
--- a/tests/Composer/Factory/AutoloadStrategyTest.php
+++ b/tests/Composer/Factory/AutoloadStrategyTest.php
@@ -18,17 +18,20 @@
             'composer-plug-and-play' => [
                 'strategy' => 'experimental:autoload',
                 'autoload-dev' => ['dex/fake'],
-            ]
+            ],
         ],
         'autoload' => [
             'psr-4' => [
                 'Dex\\Fake\\' => 'packages/dex/fake/src/',
-            ]
+            ],
+            'files' => [
+                'packages/dex/fake/scripts/start.php',
+            ],
         ],
         'autoload-dev' => [
             'psr-4' => [
                 'Dex\\Fake\\Tests\\' => 'packages/dex/fake/tests/',
-            ]
+            ],
         ],
         'require' => [
             'dex/fake' => '@dev',
@@ -39,6 +42,6 @@
                 'url' => './packages/vendor/dex/fake',
                 'symlink' => true,
             ],
-        ]
+        ],
     ]);
 });