diff --git a/trytond/tests/test_tryton.py b/trytond/tests/test_tryton.py
index 2a4a8dc656..88abda8027 100644
--- a/trytond/tests/test_tryton.py
+++ b/trytond/tests/test_tryton.py
@@ -901,6 +901,7 @@ def doctest_setup(test):
 
 
 def doctest_teardown(test):
+    unittest.mock.patch.stopall()
     return drop_db()