diff --git a/tutorial/py.twisted/PythonClient.py b/tutorial/py.twisted/PythonClient.py
index 27a3d53..351c7f2 100755
--- a/tutorial/py.twisted/PythonClient.py
+++ b/tutorial/py.twisted/PythonClient.py
@@ -20,7 +20,7 @@
 #
 
 import sys
-sys.path.append('../gen-py')
+sys.path.append('../gen-py.twisted')
 
 from tutorial import Calculator
 from tutorial.ttypes import *