diff --git a/Lib/test/test_os.py b/Lib/test/test_os.py
index 43be3c45419420..a3ae765ec10a53 100644
--- a/Lib/test/test_os.py
+++ b/Lib/test/test_os.py
@@ -113,7 +113,7 @@ def test_getcwd(self):
         cwd = os.getcwd()
         self.assertIsInstance(cwd, str)
 
-    @unittest.skipUnless(hasattr(os, 'getdtablesize'), 'need os.getdtablesize()')  
+    @unittest.skipUnless(hasattr(os, 'getdtablesize'), 'need os.getdtablesize()')
     def test_getdtablesize(self):
         size = os.getdtablesize()
         self.assertIsInstance(size, int)