diff --git a/src/Gaufrette/File.php b/src/Gaufrette/File.php
index 615d76940..998bae58b 100644
--- a/src/Gaufrette/File.php
+++ b/src/Gaufrette/File.php
@@ -50,9 +50,9 @@ class File
 
     /**
      * @param string     $key
-     * @param Filesystem $filesystem
+     * @param FilesystemInterface $filesystem
      */
-    public function __construct($key, Filesystem $filesystem)
+    public function __construct($key, FilesystemInterface $filesystem)
     {
         $this->key = $key;
         $this->name = $key;