diff --git a/doc/source/admin/image-building.rst b/doc/source/admin/image-building.rst
index 6a0e3ab4a4..056b2d8e97 100644
--- a/doc/source/admin/image-building.rst
+++ b/doc/source/admin/image-building.rst
@@ -23,6 +23,7 @@ Generate the ``kolla-build.conf`` file using the following steps.
 .. code-block:: console
 
    pip install tox
+   cd kolla/
    tox -e genconfig
 
 .. end