diff --git a/errata.html b/errata.html
index bb40aa1..6946663 100644
--- a/errata.html
+++ b/errata.html
@@ -42,7 +42,7 @@ pre {
   </p>
 
   <p>
-    <b>p.38, ¶4</b>: For "value of the underlying type", read
+    <b>p.40, ¶4</b>: For "value of the underlying type", read
     "value of an unnamed type with the same underlying type".
     <!-- The "unnamed" restriction is there for basic types, which
          are named, so it forbids Celsius(0)==float64(0), for instance.