diff --git a/static/build.html b/static/build.html
index 5032282a..24aa913a 100644
--- a/static/build.html
+++ b/static/build.html
@@ -499,6 +499,14 @@ mkdir -p vendor/google_devices
 rm -rf vendor/google_devices/DEVICE
 mv vendor/android-prepare-vendor/DEVICE/BUILD_ID/vendor/google_devices/* vendor/google_devices/</pre>
 
+                    <p><strong>Since there aren't yet official Android 12 releases, you need to
+                    download the Android 12 Beta 5
+                    <a href="https://developer.android.com/about/versions/12/download">factory
+                    images zip</a> and pass that to android-prepare-vendor with the
+                    <code>--img</code> switch along with downloading the
+                    <a href="https://developer.android.com/about/versions/12/download-ota">over-the-air
+                    update zip</a> and passing that with the <code>--ota</code> switch.</strong></p>
+
                     <p>Note that android-prepare-vendor is non-deterministic unless a timestamp parameter is
                     passed with <code>--timestamp</code> (seconds since Epoch).</p>
                 </section>