diff --git a/agent/testing/winapi.py b/agent/testing/winapi.py
index ed7fc22..d44b947 100644
--- a/agent/testing/winapi.py
+++ b/agent/testing/winapi.py
@@ -22,7 +22,7 @@ Fake Windows API functions for testing purposes.
 $Id$
 """
 
-client = ctypes = win32api = win32process = win32con = None
+win32api = win32process = win32con = None
 
 
 class com_error(Exception):