diff --git a/src/components/saber-controls.js b/src/components/saber-controls.js
index 72cae35..69b480f 100644
--- a/src/components/saber-controls.js
+++ b/src/components/saber-controls.js
@@ -18,6 +18,7 @@ AFRAME.registerComponent('saber-controls', {
     this.controllerType = '';
     this.bladeEl = el.querySelector('.blade');
     this.bladeTipPosition = new THREE.Vector3();
+    this.bladeTipPreviousPosition = new THREE.Vector3();
     this.swinging = false;
     this.strokeCount = 0;