diff --git a/doc/go1.20.html b/doc/go1.20.html
index e479fce8a1..0495261ae5 100644
--- a/doc/go1.20.html
+++ b/doc/go1.20.html
@@ -883,7 +883,7 @@ proxyHandler := &httputil.ReverseProxy{
       if a <code>CNAME</code> record referred to a name that with no <code>A</code>,
       <code>AAAA</code>, or <code>CNAME</code> record. This change modifies
       <code>LookupCNAME</code> to match the previous behavior on Windows,
-      allowing allowing <code>LookupCNAME</code> to succeed whenever a
+      allowing <code>LookupCNAME</code> to succeed whenever a
       <code>CNAME</code> exists.
     </p>