diff --git a/doc/getting_started/configuration.rst b/doc/getting_started/configuration.rst
index 940303e9a..a88a32131 100644
--- a/doc/getting_started/configuration.rst
+++ b/doc/getting_started/configuration.rst
@@ -343,7 +343,7 @@ whose ``expire_date`` is in the past.
 
 For example, you could setup a cron job to run this script every night::
 
-  0 0 * * * <modoboa_site>/manage.py cleanup
+  0 0 * * * <modoboa_site>/manage.py clearsessions
   #
   # Or like this if you use a virtual environment:
   # 0 0 * * * <virtualenv path/bin/python> <modoboa_site>/manage.py clearsessions
diff --git a/doc/getting_started/install.rst b/doc/getting_started/install.rst
index 3551fbeea..834ac1f09 100644
--- a/doc/getting_started/install.rst
+++ b/doc/getting_started/install.rst
@@ -103,6 +103,11 @@ Deployment
    If you want to use install all extensions, just use the ``all``
    shortcut like this ``--extensions all``.
 
+   If you choose to install extensions one at a time, you will have to
+   add their names in settings.py to ``MODOBOA_APPS``. Also ensure that
+   you have the line ``from modoboa_amavis.settings import *`` at the
+   end of this file.
+
 .. note::
 
    You can specify more than one database connection using the
diff --git a/doc/getting_started/upgrade.rst b/doc/getting_started/upgrade.rst
index 59cd369bd..8466b4ea5 100644
--- a/doc/getting_started/upgrade.rst
+++ b/doc/getting_started/upgrade.rst
@@ -112,6 +112,11 @@ Here are the required steps:
    $ python manage.py load_initial_data
    $ python manage.py collectstatic
 
+#. The cleanup job has been renamed in Django, so you have to modify your crontab entry::
+
+   - 0 0 * * * <modoboa_site>/manage.py cleanup
+   + 0 0 * * * <modoboa_site>/manage.py clearsessions
+
 1.2.0
 =====