diff --git a/.gitignore b/.gitignore
index a5b85031db205..addc0e013545c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -51,3 +51,5 @@ atlassian*
 !/var/.htaccess
 /vendor/*
 !/vendor/.htaccess
+/generated/*
+!/generated/.htaccess
diff --git a/lib/internal/Magento/Framework/App/Filesystem/DirectoryList.php b/lib/internal/Magento/Framework/App/Filesystem/DirectoryList.php
index 57c903b49198c..8ab0ba3bc3e95 100644
--- a/lib/internal/Magento/Framework/App/Filesystem/DirectoryList.php
+++ b/lib/internal/Magento/Framework/App/Filesystem/DirectoryList.php
@@ -109,6 +109,11 @@ class DirectoryList extends \Magento\Framework\Filesystem\DirectoryList
 
     const TEMPLATE_MINIFICATION_DIR = 'html';
 
+    /**
+     * Generated code.
+     */
+    const GENERATED = 'generated';
+
     /**
      * {@inheritdoc}
      */
@@ -135,6 +140,7 @@ public static function getDefaultConfig()
             self::TEMPLATE_MINIFICATION_DIR => [parent::PATH => 'var/view_preprocessed/html'],
             self::SETUP => [parent::PATH => 'setup/src'],
             self::COMPOSER_HOME => [parent::PATH => 'var/composer_home'],
+            self::GENERATED => [parent::PATH => 'generated'],
         ];
         return parent::getDefaultConfig() + $result;
     }
diff --git a/lib/internal/Magento/Framework/Setup/FilePermissions.php b/lib/internal/Magento/Framework/Setup/FilePermissions.php
index 4cc4a1852f0d7..800c9f69cde8d 100644
--- a/lib/internal/Magento/Framework/Setup/FilePermissions.php
+++ b/lib/internal/Magento/Framework/Setup/FilePermissions.php
@@ -82,6 +82,7 @@ public function getInstallationWritableDirectories()
                 DirectoryList::VAR_DIR,
                 DirectoryList::MEDIA,
                 DirectoryList::STATIC_VIEW,
+                DirectoryList::GENERATED,
             ];
             foreach ($data as $code) {
                 $this->installationWritableDirectories[$code] = $this->directoryList->getPath($code);