diff --git a/compose/index.html b/compose/index.html
index b18ed422..604e06b0 100644
--- a/compose/index.html
+++ b/compose/index.html
@@ -10,6 +10,7 @@
   </head>
   <body>
     <div id="app-standalone"></div>
+    <div id="modal-container"></div>
     <script type="module" src="/src/compose.jsx"></script>
   </body>
 </html>
