diff --git a/three.js/examples/mobile-performance.html b/three.js/examples/mobile-performance.html
index bcd803f8b227d45eda8b19ce11d2950dff069668..3461a3b00cf5f7f44c6c8f4434072a9d5839adcf 100644
--- a/three.js/examples/mobile-performance.html
+++ b/three.js/examples/mobile-performance.html
@@ -132,7 +132,7 @@
 	var arWorldRoot = smoothedRoot
 
 	// add a torus knot	
-	var geometry	= new THREE.CubeGeometry(1,1,1);
+	var geometry	= new THREE.BoxGeometry(1,1,1);
 	var material	= new THREE.MeshNormalMaterial({
 		transparent : true,
 		opacity: 0.5,