diff --git a/web-world/examples/forward-backward/forward-backward.rkt b/web-world/examples/forward-backward/forward-backward.rkt
index 8f2365c..17b2040 100644
--- a/web-world/examples/forward-backward/forward-backward.rkt
+++ b/web-world/examples/forward-backward/forward-backward.rkt
@@ -21,7 +21,7 @@
     updated-view]))
     
 (define (iterate n f x)
-  (if (= n 0)
+  (if (<= n 0)
       x
       (iterate (sub1 n ) f (f x))))