diff --git a/doc/getting_started/install.rst b/doc/getting_started/install.rst
index bdd09dbee..e4b6bc5ec 100644
--- a/doc/getting_started/install.rst
+++ b/doc/getting_started/install.rst
@@ -110,7 +110,7 @@ Deployment
    prefix. The primary connection must use the ``default:`` prefix (as
    shown in the example above). For the `amavis extension
    <http://modoboa-amavis.readthedocs.org>`_ extension, use the
-   ``amavis:`` prefix like this ``--dburl amavis:<database url>``.
+   ``amavis:`` prefix like this ``amavis:<database url>``.
 
    Your database url should meet the following syntax
    ``scheme://[user:pass@][host:port]/dbname`` **OR**
diff --git a/modoboa/core/commands/templates/settings.py.tpl b/modoboa/core/commands/templates/settings.py.tpl
index 8ba295fc8..8f6ebc359 100644
--- a/modoboa/core/commands/templates/settings.py.tpl
+++ b/modoboa/core/commands/templates/settings.py.tpl
@@ -164,5 +164,5 @@ LOGGING = {
     }
 }
 {% for extension in extra_settings %}
-import {{ extension }}.settings
+from {{ extension }}.settings import *
 {% endfor %}