diff --git a/pytest_odoo.py b/pytest_odoo.py
index 0a6b0e5..1f83af5 100644
--- a/pytest_odoo.py
+++ b/pytest_odoo.py
@@ -19,6 +19,9 @@
 import pytest
 
 import odoo
+import odoo.service
+import odoo.tests
+import odoo.tools
 
 
 def pytest_addoption(parser):