diff --git a/src/lights/RectAreaLight.js b/src/lights/RectAreaLight.js
index 789fb9a..0d78df5 100644
--- a/src/lights/RectAreaLight.js
+++ b/src/lights/RectAreaLight.js
@@ -23,7 +23,7 @@ export default {
 
     if (this.helper) {
       this.lightHelper = new RectAreaLightHelper(this.light);
-      this.addToParent(this.lightHelper);
+      this.light.add(this.lightHelper);
     }
 
     this.initLight();