diff --git a/src/Symfony/Component/Filesystem/README.md b/src/Symfony/Component/Filesystem/README.md
index 7d8a4749ed..85b0f1c522 100644
--- a/src/Symfony/Component/Filesystem/README.md
+++ b/src/Symfony/Component/Filesystem/README.md
@@ -18,6 +18,8 @@ $filesystem->touch($files, $time = null, $atime = null);
 
 $filesystem->remove($files);
 
+$filesystem->exists($files);
+
 $filesystem->chmod($files, $mode, $umask = 0000, $recursive = false);
 
 $filesystem->chown($files, $user, $recursive = false);