diff --git a/platypush/backend/http/webapp/src/components/panels/Entities/Light.vue b/platypush/backend/http/webapp/src/components/panels/Entities/Light.vue
index 6e319332..99859542 100644
--- a/platypush/backend/http/webapp/src/components/panels/Entities/Light.vue
+++ b/platypush/backend/http/webapp/src/components/panels/Entities/Light.vue
@@ -192,6 +192,11 @@ export default {
 
     this.colorConverter = new ColorConverter(ranges)
   },
+
+  unmounted() {
+    if (this.colorConverter)
+      delete this.colorConverter
+  },
 }
 </script>