diff --git a/src/martian/testing.py b/src/martian/testing.py
index 071e194..eafde0b 100644
--- a/src/martian/testing.py
+++ b/src/martian/testing.py
@@ -88,7 +88,10 @@ def __init__(cls, classname, bases, dict_):
         return type.__init__(cls, classname, bases, dict_)
 
 
-if sys.version_info[0] >= 3:
+if sys.version_info[0] < 3:
+    class FakeModuleObject(object):
+        pass
+else:
     class FakeModuleObject(object, metaclass = FakeModuleObjectMetaclass):
         pass