diff --git a/manage.py b/manage.py
old mode 100644
new mode 100755
index a088af0..969754d
--- a/manage.py
+++ b/manage.py
@@ -23,6 +23,9 @@ import sys
 
 if __name__ == "__main__":
     os.environ.setdefault("DJANGO_SETTINGS_MODULE", "passerelle.settings")
+    from django.conf import settings
+
+    settings.INSTALLED_APPS += ('atreal_openads',)
 
     from django.core.management import execute_from_command_line
 
diff --git a/tox.ini b/tox.ini
index aa2b6bf..49427e0 100644
--- a/tox.ini
+++ b/tox.ini
@@ -44,3 +44,12 @@ deps =
 commands =
   py.test {posargs: {env:COVERAGE:} {env:JUNIT:} tests/}
   coverage: ./pylint.sh atreal_openads/
+
+[testenv:manage]
+usedevelop = True
+setenv =
+  DJANGO_SETTINGS_MODULE=passerelle.settings
+deps =
+  http://git.entrouvert.org/passerelle.git/snapshot/passerelle-master.tar.gz
+commands =
+  python3 ./manage.py {posargs:--help}