diff --git a/html/index.html b/html/index.html
index 82c69ef..42f880b 100644
--- a/html/index.html
+++ b/html/index.html
@@ -7,7 +7,8 @@
         ></script>
         <script type="module">
           import {renderToCanvas} from './js/mobile-automata.mjs'
-          renderToCanvas(document.getElementById('automataCanvas'), canvas.width, canvas.height);
+          const canvas = document.getElementById('automataCanvas');
+          renderToCanvas(canvas, canvas.width, canvas.height);
         </script>
 
         <meta charset="UTF-8" />