diff --git a/cookbook/bundles/extension.rst b/cookbook/bundles/extension.rst
index e658d96eecd..8e082fc1043 100644
--- a/cookbook/bundles/extension.rst
+++ b/cookbook/bundles/extension.rst
@@ -423,7 +423,6 @@ global parameters available to use:
 * ``kernel.root_dir``
 * ``kernel.cache_dir``
 * ``kernel.logs_dir``
-* ``kernel.bundle_dirs``
 * ``kernel.bundles``
 * ``kernel.charset``