diff --git a/Lib/idlelib/idle_test/test_autocomplete.py b/Lib/idlelib/idle_test/test_autocomplete.py
index 6a33b456235..bcc853c9f29 100644
--- a/Lib/idlelib/idle_test/test_autocomplete.py
+++ b/Lib/idlelib/idle_test/test_autocomplete.py
@@ -19,7 +19,7 @@ class DummyEditwin:
         self.indentwidth = 8
         self.tabwidth = 8
         self.context_use_ps1 = True
-        
+
 
 class AutoCompleteTest(unittest.TestCase):