diff --git a/pkg/emscripten/index.html b/pkg/emscripten/index.html
index cd84261cb4..111a773b20 100644
--- a/pkg/emscripten/index.html
+++ b/pkg/emscripten/index.html
@@ -24,6 +24,9 @@
            <li class="nav-item fceumm">
                <a class="nav-link" href="." onclick=switchCore("fceumm")>FCEUmm</a>
             </li>
+           <li class="nav-item fmsx">
+               <a class="nav-link" href="." onclick=switchCore("fmsx")>fMSX</a>
+            </li>
            <li class="nav-item gambatte">
                <a class="nav-link" href="." onclick=switchCore("gambatte")>Gambatte</a>
             </li>