1 files changed, 2 insertions, 3 deletions
diff --git a/sample/fact.rb b/sample/fact.rb
index 1462a6923a..d8147a40f1 100644
--- a/sample/fact.rb
+++ b/sample/fact.rb
@@ -1,9 +1,8 @@
 def fact(n)
   return 1 if n == 0
   f = 1
-  while n>0
-    f *= n
-    n -= 1
+  n.downto(1) do |i|
+    f *= i
   end
   return f
 end