diff --git a/docs/ReleaseNotes.html b/docs/ReleaseNotes.html
index a516cc18d53..ed6da149b44 100644
--- a/docs/ReleaseNotes.html
+++ b/docs/ReleaseNotes.html
@@ -166,6 +166,8 @@ were fixed:</a>
        incorrect for short circuit logical operations</a></li>
    <li><a href="http://llvm.cs.uiuc.edu/PR517">[llvm-gcc] Crash compiling 
        bitfield &lt;-&gt; aggregate assignment</a></li>
+   <li><a href="http://llvm.cs.uiuc.edu/PR520">[llvm-g++] Error compiling 
+       virtrual function thunk with an unnamed argument</a></li>
 </ol>
 
 </div>