diff --git a/collects/teachpack/htdp/scribblings/world.scrbl b/collects/teachpack/htdp/scribblings/world.scrbl
index f99fde8905..3f763651a7 100644
--- a/collects/teachpack/htdp/scribblings/world.scrbl
+++ b/collects/teachpack/htdp/scribblings/world.scrbl
@@ -18,7 +18,7 @@ have a series of projects available as a small booklet on
 
 The purpose of this documentation is to give experienced Schemers a concise
 overview for using the library and for incorporating it elsewhere. The last
-section presents a working example for an extremely simple domain and is
+section presents @secref["example"] for an extremely simple domain and is
 suited for a novice who knows how to design conditional functions for
 symbols.