diff --git a/base_exception/tests/common.py b/base_exception/tests/common.py
index fc52552f8..a66b65238 100644
--- a/base_exception/tests/common.py
+++ b/base_exception/tests/common.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # Copyright 2017 ACSONE SA/NV (<http://acsone.eu>)
 # License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html).
 
diff --git a/base_exception/tests/test_base_exception.py b/base_exception/tests/test_base_exception.py
index 33755133d..c0442731d 100644
--- a/base_exception/tests/test_base_exception.py
+++ b/base_exception/tests/test_base_exception.py
@@ -9,6 +9,8 @@ import logging
 _logger = logging.getLogger(__name__)
 
 
+@common.at_install(False)
+@common.post_install(True)
 class TestBaseException(common.SavepointCase):
 
     # pylint: disable=missing-return