diff --git a/debian/control b/debian/control
index 37270b47841350862fda96e8371b4868b91f377a..eb671d05c514a974f47c6f5d6b7ae1ace00a6077 100644
--- a/debian/control
+++ b/debian/control
@@ -39,15 +39,17 @@ Depends:
  python3-suds,
  python3-tz,
  python3-vatnumber,
- python3-vobject,
  python3-werkzeug,
  python3-xlsxwriter,
  python3-yaml,
 Conflicts: tinyerp-server, openerp-server, openerp-web, openerp
 Replaces: tinyerp-server, openerp-server, openerp-web, openerp
 Recommends:
+ ${python3:Recommends},
  postgresql,
- python-gevent,
+ python3-pyldap,
+ python3-qrcode,
+ python3-vobject,
 Description: Open Source Apps To Grow Your Business
  Odoo, formerly known as OpenERP, is a suite of open-source business apps
  written in Python and released under the LGPLv3 license. This suite of
diff --git a/debian/py3dist-overrides b/debian/py3dist-overrides
new file mode 100644
index 0000000000000000000000000000000000000000..3264059ab840a044a76a93139f3877a052e2931e
--- /dev/null
+++ b/debian/py3dist-overrides
@@ -0,0 +1,3 @@
+pyldap
+vobject
+qrcode
\ No newline at end of file
diff --git a/doc/setup/install.rst b/doc/setup/install.rst
index e2d261a105aa799ab06410f0ce1522f90225b113..04730ab94bd9daffa9d8386c061b3e2403f9614b 100644
--- a/doc/setup/install.rst
+++ b/doc/setup/install.rst
@@ -177,6 +177,22 @@ Or ``dpkg`` (handles less dependencies automatically):
     # dpkg -i <path_to_installation_package>
 
 
+.. warning:: The 3 following python packages are only suggested by the Debian package.
+             Those packages are not available in Ubuntu Xenial (16.04).
+
+* python3-vobject: Used in calendars to produce ical files.
+* python3-pyldap: Used to authenticat users with LDAP.
+* python3-qrcode: Used by the hardware driver for ESC/POS
+
+If you need one or all of the packages mentioned in the above warning, you can install them manually.
+One way to do it, is simply using pip3 like this:
+
+.. code-block:: console
+
+    $ sudo pip3 install vobject qrcode
+    $ sudo apt install libldap2-dev libsasl2-dev
+    $ sudo pip3 install pyldap
+
 This will install Odoo as a service, create the necessary PostgreSQL_ user
 and automatically start the server.