diff --git a/Example:-Factorial.md b/Example:-Factorial.md
index c9439c1..ecd00da 100644
--- a/Example:-Factorial.md
+++ b/Example:-Factorial.md
@@ -11,3 +11,5 @@ This example shows how EightBall can support recursion.  I should point out that
         return val * fact(val-1)
       endif
     return -1 ; ' Never get here
+
+`fact(3)` calls `fact(2)`, which calls `fact(1)`, then finally `fact(0)`.
\ No newline at end of file