diff --git a/static/build.html b/static/build.html
index 6007cc9a..26897997 100644
--- a/static/build.html
+++ b/static/build.html
@@ -262,6 +262,7 @@
                         <li>freetype2 and any OpenType/TrueType font (such as DejaVu but anything works)
                             for OpenJDK despite it being a headless variant without GUI support</li>
                         <li>ncurses5 (provided by the source tree for some tools but not others)</li>
+                        <li>openssl</li>
                         <li>rsync</li>
                         <li>unzip</li>
                         <li>zip</li>