diff --git a/doc/play/peano.go b/doc/play/peano.go
index c1ee5ad45d..31619b1b1c 100644
--- a/doc/play/peano.go
+++ b/doc/play/peano.go
@@ -3,9 +3,9 @@
 // (the nodes are the data).
 // http://en.wikipedia.org/wiki/Peano_axioms
 
-// This program demonstrates the power of Go's
-// segmented stacks when doing massively
-// recursive computations.
+// This program demonstrates the effectiveness
+// of the Go runtime's dynamically growing
+// stacks for heavily recursive computations.
 
 package main