diff --git a/Lib/idlelib/IOBinding.py b/Lib/idlelib/IOBinding.py
index eb7f97b0737..3c0995a162d 100644
--- a/Lib/idlelib/IOBinding.py
+++ b/Lib/idlelib/IOBinding.py
@@ -183,7 +183,7 @@ def open(self, event=None, editFile=None):
             else:
                 if self.text:
                     self.text.focus_set()
-            
+
             return "break"
         #
         # Code for use outside IDLE: