diff --git a/example.rb b/example.rb
index 10bed02..5d31d22 100644
--- a/example.rb
+++ b/example.rb
@@ -16,7 +16,7 @@ def score
     bowling = Bowling.new
     20.times { bowling.hit(0) }
 
-    bowling.score 1.it_is?
+    bowling.score 0.it_is?
     bowling.score 42.it_is_not!
   }
 }