diff --git a/tests/test_warcprox.py b/tests/test_warcprox.py
index c251b54..4ffa43c 100755
--- a/tests/test_warcprox.py
+++ b/tests/test_warcprox.py
@@ -1440,7 +1440,7 @@ def test_load_plugin():
         'warcprox.stats.RunningStats',
         'warcprox.BaseStandardPostfetchProcessor',
         'warcprox.BaseBatchPostfetchProcessor',
-        '__main__.MyEarlyPlugin',])
+        '%s.%s' % (__name__, MyEarlyPlugin.__name__),])
     controller = warcprox.controller.WarcproxController(options)
     assert isinstance(
             controller._postfetch_chain[-1],
@@ -1463,7 +1463,7 @@ def test_load_plugin():
             warcprox.stats.RunningStats)
     assert isinstance(
             controller._postfetch_chain[-5],
-            __main__.MyEarlyPlugin)
+            '%s.%s' % (__name__, Foo.__name__))
 
 def test_choose_a_port_for_me(warcprox_):
     options = warcprox.Options()