diff --git a/brand/index.html b/brand/index.html
index 0caab44..aad6a07 100644
--- a/brand/index.html
+++ b/brand/index.html
@@ -260,7 +260,7 @@
 
 <section id="usage">
   <h2>Usage &amp; trademark</h2>
-  <p class="lede">These files are the marks of Sirius and Silent Mode, not open-licensed artwork; the <a href="https://code.silentmode.st/silentmode/theseus/src/branch/master/TRADEMARKS.md">trademark note</a> says what their use allows. Use them to refer to Sirius in third-party tools that integrate with Sirius.X
+  <p class="lede">These files are the marks of Sirius and Silent Mode, not open-licensed artwork; the <a href="https://code.silentmode.st/silentmode/theseus/src/branch/master/TRADEMARKS.md">trademark note</a> says what their use allows. Use them to refer to Sirius in third-party tools that integrate with Sirius.X, never as your own mark
      (wallets, indexers, explorers, blog posts about BCNR). Keep the star's proportions intact and
      don't recolour the acid to a similar-but-different green — palette drift is what makes brands
      look untrustworthy over time.</p>
@@ -268,6 +268,7 @@
     <li><b style="color:var(--ink)">Do</b> use the mark to indicate "supports Sirius.X" or "hosted on Sirius.X".</li>
     <li><b style="color:var(--ink)">Do</b> shrink to the favicon at 16×16 — the SVG scales cleanly.</li>
     <li><b style="color:var(--ink)">Don't</b> imply endorsement of a specific product without asking.</li>
+    <li><b style="color:var(--ink)">Don't</b> ship a fork, a product or a name under this name or mark — a fork is welcome under its own.</li>
     <li><b style="color:var(--ink)">Don't</b> stretch, skew, or re-tint the star.</li>
   </ul>
 </section>