diff --git a/doc/go_spec.html b/doc/go_spec.html
index ad21ffb..df256f0 100644
--- a/doc/go_spec.html
+++ b/doc/go_spec.html
@@ -4334,7 +4334,7 @@
 
 var t []string
 t0 := (*[0]string)(t)    // t0 == nil
-t1 := (*[1]string)(t)    // panics: len([1]string) > len(s)
+t1 := (*[1]string)(t)    // panics: len([1]string) > len(t)
 </pre>
 
 <h3 id="Constant_expressions">Constant expressions</h3>