diff --git a/tests/stdlib/all.py b/tests/stdlib/all.py
index 2a1a9b5..65f20c8 100644
--- a/tests/stdlib/all.py
+++ b/tests/stdlib/all.py
@@ -23,6 +23,7 @@ def assimilate_patched(name):
         try:
             test_method = modobj.test_main
             def test_main():
+                restart_hub()
                 test_method()
                 restart_hub()
             globals()[method_name] = test_main