diff --git a/mailpoet/lib/Config/TwigFileSystemCache.php b/mailpoet/lib/Config/TwigFileSystemCache.php
new file mode 100644
index 0000000000..e993102111
--- /dev/null
+++ b/mailpoet/lib/Config/TwigFileSystemCache.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace MailPoet\Config;
+
+class TwigFileSystemCache extends \MailPoetVendor\Twig\Cache\FilesystemCache {
+
+  private $directory;
+
+  public function __construct(
+    string $directory,
+    int $options = 0
+  ) {
+    $this->directory = \rtrim($directory, '\\/') . '/';
+    parent::__construct($directory, $options);
+  }
+
+  public function generateKey(string $name, string $className): string {
+    $hash = \hash('sha256', $className);
+    return $this->directory . $hash[0] . $hash[1] . '/' . $hash . '.php';
+  }
+}