diff --git a/static/build.html b/static/build.html
index 84e83bc3..d83859ee 100644
--- a/static/build.html
+++ b/static/build.html
@@ -397,8 +397,9 @@ source script/envsetup.sh
 m aapt2</pre>
 
                     <p>Extract the vendor files corresponding to the matching release with
-                    <code>DEVICE</code> and <code>BUILD_ID</code> variables replaced with the appropriate
-                    values:</p>
+                    <code>DEVICE</code> and <code>BUILD_ID</code> variables replaced with the
+                    appropriate values (can obtain the correct <code>BUILD_ID</code> from
+                    <code>build/make/core/build_id.mk</code>):</p>
 
                     <pre>DEVICE=raven
 BUILD_ID=TQ2A.230405.003.E1