diff --git a/index.html b/index.html
index d944101..4b0f9f9 100644
--- a/index.html
+++ b/index.html
@@ -43,7 +43,7 @@
 
     <script type="text/javascript">
       const resize = () => {
-        const aspectRatio = 3 / 4;
+        const aspectRatio = 4 / 3;
         const maxWidth = window.innerWidth;
         const maxHeight = window.innerHeight;
         const canvasWrapper = document.getElementById("canvas_wrapper");