diff --git a/02_06/ch2_challenge.py b/02_06/ch2_challenge.py
index 11311d3..f758430 100644
--- a/02_06/ch2_challenge.py
+++ b/02_06/ch2_challenge.py
@@ -5,13 +5,15 @@
 import turtle
 
 MAX_LENGTH = 250
-INCREMENT = 10
+INCREMENT = 11
 
 
 def draw_spiral(a_turtle, line_length):
+    if line_length > MAX_LENGTH:
+        return
     a_turtle.forward(line_length)
     a_turtle.right(90)
-    draw_spiral(a_turtle, INCREMENT)
+    draw_spiral(a_turtle, line_length + INCREMENT)
 
 
 charlie = turtle.Turtle(shape="turtle")