diff --git a/public/index.html b/public/index.html
index cd02e66436f43d55fd7eaa7e021a888810f80c31..dac3a32f3a178d4aa4bd4e767aa65ee456171796 100644
--- a/public/index.html
+++ b/public/index.html
@@ -24,7 +24,7 @@ async function activateXR() {
   const scene = new THREE.Scene();
 
 // Color of the torus geometry.
-const material = THREE.MeshStandardMaterial({ color: 0x238b45, roughness: 0.5, metalness: 0.5 });
+const material = new THREE.MeshStandardMaterial({ color: 0x238b45, roughness: 0.5, metalness: 0.5 });
 
 // Create the torus and add it to the demo scene.
 const torus = new THREE.Mesh( new THREE.TorusKnotGeometry(0.2,0.2,5,4,1,2), material);