diff --git a/static/build.html b/static/build.html
index be0128ae..94378f32 100644
--- a/static/build.html
+++ b/static/build.html
@@ -256,6 +256,7 @@
                 <li>m4 (will be included as a prebuilt in the next major release)</li>
                 <li>ncurses5 (provided by the source tree for some tools but not others)</li>
                 <li>python2 (being replaced with python3 for the next major release)</li>
+                <li>rsync</li>
                 <li>unzip</li>
             </ul>