diff --git a/doc/06-config.md b/doc/06-config.md
index 4716b93bb..f07b8ea57 100644
--- a/doc/06-config.md
+++ b/doc/06-config.md
@@ -162,7 +162,7 @@ Example:
 ```json
 {
     "config": {
-        "bin-dir": "bin"
+        "archive-dir": "/home/user/.composer/repo"
     }
 }
 ```
diff --git a/src/Composer/Command/ConfigCommand.php b/src/Composer/Command/ConfigCommand.php
index d0f504d9c..b55e6d01f 100644
--- a/src/Composer/Command/ConfigCommand.php
+++ b/src/Composer/Command/ConfigCommand.php
@@ -295,6 +295,8 @@ EOT
             'notify-on-install' => array($booleanValidator, $booleanNormalizer),
             'vendor-dir' => array('is_string', function ($val) { return $val; }),
             'bin-dir' => array('is_string', function ($val) { return $val; }),
+            'archive-dir' => array('is_string', function ($val) { return $val; }),
+            'archive-format' => array('is_string', function ($val) { return $val; }),
             'cache-dir' => array('is_string', function ($val) { return $val; }),
             'cache-files-dir' => array('is_string', function ($val) { return $val; }),
             'cache-repo-dir' => array('is_string', function ($val) { return $val; }),