diff --git a/generator_iterator.htm b/generator_iterator.htm
index 6070522..b0e376e 100644
--- a/generator_iterator.htm
+++ b/generator_iterator.htm
@@ -146,7 +146,7 @@ int main()
   <hr>
 
   <p><a href="http://validator.w3.org/check?uri=referer"><img border="0" src=
-  "http://www.w3.org/Icons/valid-html401" alt="Valid HTML 4.01 Transitional"
+  "../../doc/images/valid-html401.png" alt="Valid HTML 4.01 Transitional"
   height="31" width="88"></a></p>
 
   <p>Revised