diff --git a/static/build.html b/static/build.html
index 48005da0..3e78295a 100644
--- a/static/build.html
+++ b/static/build.html
@@ -211,6 +211,8 @@ cd grapheneos-pie-b4s4
 repo init -u https://github.com/GrapheneOS/platform_manifest.git -b pie-b4s4
 repo sync -j32</pre>
 
+            <p>The <code>10</code> branch is for the upcoming port to Android 10 which has only just been started.</p>
+
             <p>If your network is unreliable and <code>repo sync</code> fails, you can run the
             <code>repo sync</code> command again as many times as needed for it to fully
             succeed.</p>