diff --git a/test/py.tornado/test_suite.py b/test/py.tornado/test_suite.py
index e0bf913..b9ce781 100755
--- a/test/py.tornado/test_suite.py
+++ b/test/py.tornado/test_suite.py
@@ -27,7 +27,7 @@
 import unittest
 
 basepath = os.path.abspath(os.path.dirname(__file__))
-sys.path.insert(0, basepath+'/gen-py.tornado')
+sys.path.insert(0, basepath + '/gen-py.tornado')
 sys.path.insert(0, glob.glob(os.path.join(basepath, '../../lib/py/build/lib*'))[0])
 
 try: