diff --git a/docs/CodingStandards.html b/docs/CodingStandards.html
index 04ce54fde47..9a93278c56a 100644
--- a/docs/CodingStandards.html
+++ b/docs/CodingStandards.html
@@ -522,6 +522,10 @@ library. There are two problems with this:</p>
       put more pressure on the VM system on low-memory machines.</li>
 </ol>
 
+<p>Note that using the other stream headers (<tt>&lt;sstream&gt;</tt> for
+example) is allowed normally, it is just <tt>&lt;iostream&gt;</tt> that is
+causing problems.</p>
+
 <div align="center">
 <table>
   <tbody>