diff --git a/errata.html b/errata.html
index 3dcf365..c902706 100644
--- a/errata.html
+++ b/errata.html
@@ -172,6 +172,11 @@ pre {
     (Corrected in the third printing.)
   </p>
 
+  <p>
+    <b>p.177, ¶6</b>: For "as we saw", read "as we will see".
+    (Thanks to David Drysdale, 2016-07-05.)
+  </p>
+
   <p>
     <b>p.200, <code>TestEval</code> function</b>: The format string in the final call to
     <code>t.Errorf</code> should format <code>test.env</code> with <code>%v</code>,