diff --git a/modoboa/core/api/v2/tests.py b/modoboa/core/api/v2/tests.py
index 87efccf89..5305c64e1 100644
--- a/modoboa/core/api/v2/tests.py
+++ b/modoboa/core/api/v2/tests.py
@@ -283,22 +283,22 @@ class AccountViewSetTestCase(ModoAPITestCase):
         url = reverse("v2:account-available-applications")
         resp = self.client.get(url)
         self.assertEqual(resp.status_code, 200)
-        # admin -> only 1 app.
-        self.assertEqual(len(resp.json()), 1)
+        # admin -> only 2 apps.
+        self.assertEqual(len(resp.json()), 2)
 
         # Domain admin with mailbox
         dadmin = models.User.objects.get(username="admin@test.com")
         self.authenticate_user(dadmin)
         resp = self.client.get(url)
         self.assertEqual(resp.status_code, 200)
-        self.assertEqual(len(resp.json()), 4)
+        self.assertEqual(len(resp.json()), 5)
 
         # Simple user
         user = models.User.objects.get(username="user@test.com")
         self.authenticate_user(user)
         resp = self.client.get(url)
         self.assertEqual(resp.status_code, 200)
-        self.assertEqual(len(resp.json()), 3)
+        self.assertEqual(len(resp.json()), 4)
 
     @override_settings(
         MODOBOA_APPS=[
diff --git a/modoboa/lib/tests/__init__.py b/modoboa/lib/tests/__init__.py
index 67245ef72..abe01e12e 100644
--- a/modoboa/lib/tests/__init__.py
+++ b/modoboa/lib/tests/__init__.py
@@ -189,7 +189,7 @@ class ParametersMixin:
 class SimpleModoTestCase(ParametersMixin, TestCase):
     """Simple class to add parameters editing."""
 
-    pass
+    databases = "__all__"
 
 
 class ModoTestCase(ParametersMixin, TestCase):
diff --git a/modoboa/parameters/api/v2/tests.py b/modoboa/parameters/api/v2/tests.py
index bc2cc7645..ba18b5c8a 100644
--- a/modoboa/parameters/api/v2/tests.py
+++ b/modoboa/parameters/api/v2/tests.py
@@ -18,7 +18,7 @@ class GlobalParametersAPITestCase(ModoAPITestCase):
         resp = self.client.get(url)
         self.assertEqual(resp.status_code, 200)
         # core, admin, limits, pdf credentials, ...
-        self.assertEqual(len(resp.json()), 12)
+        self.assertEqual(len(resp.json()), 13)
 
     def test_get_structure(self):
         url = reverse("v2:parameter-global-structure")
@@ -111,7 +111,7 @@ class UserParametersAPITestCase(ModoAPITestCase):
         url = reverse("v2:parameter-user-applications")
         resp = self.client.get(url)
         self.assertEqual(resp.status_code, 200)
-        self.assertEqual(len(resp.json()), 2)
+        self.assertEqual(len(resp.json()), 3)
 
     def test_get_structure(self):
         url = reverse("v2:parameter-user-structure")