diff --git a/static/build.html b/static/build.html
index c5aabf88..d5ab5899 100644
--- a/static/build.html
+++ b/static/build.html
@@ -251,6 +251,7 @@
             source tree:</p>
 
             <ul>
+                <li>diff (diffutils)</li>
                 <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>m4 (will be included as a prebuilt in the next major release)</li>