diff --git a/Lib/lib-tk/turtle.py b/Lib/lib-tk/turtle.py
index 4cface736c5..4b90c616b1b 100644
--- a/Lib/lib-tk/turtle.py
+++ b/Lib/lib-tk/turtle.py
@@ -920,7 +920,7 @@ def demo2():
     down();
 
     color("red")
-    
+
     # create a second turtle and make the original pursue and catch it
     turtle=Turtle()
     turtle.reset()