diff --git a/chapter-03/03.02-animate-cube.html b/chapter-03/03.02-animate-cube.html
index f9dde27..f81913f 100644
--- a/chapter-03/03.02-animate-cube.html
+++ b/chapter-03/03.02-animate-cube.html
@@ -126,6 +126,7 @@
.to({ x: end }, time )
.easing(TWEEN.Easing.Linear.None)
.onStart(function () {
+ isTweening = true;
cube.position.y += -widht / 2;
cube.position.z += -widht / 2;
cubeGeometry.applyMatrix(new THREE.Matrix4().makeTranslation(0, widht / 2, widht / 2));
@@ -317,4 +318,4 @@
-