diff --git a/static/build.html b/static/build.html
index 6833eee3..4b5750bf 100644
--- a/static/build.html
+++ b/static/build.html
@@ -441,6 +441,8 @@ mv vendor/android-prepare-vendor/DEVICE/BUILD_ID/vendor/google_devices/* vendor/
 
             <pre>make target-files-package -j20</pre>
 
+            <p><strong>For an emulator build, always use the development build approach below.</strong></p>
+
             <h2 id="faster-builds-for-development-use-only">
                 <a href="#faster-builds-for-development-use-only">Faster builds for development use only</a>
             </h2>