diff --git a/project/dv/apps/AppGridDV.vue b/project/dv/apps/AppGridDV.vue
index 5e415b76..507b40a7 100644
--- a/project/dv/apps/AppGridDV.vue
+++ b/project/dv/apps/AppGridDV.vue
@@ -177,6 +177,7 @@
     methods: {
       bindEvent () {
         document.querySelector('body').addEventListener('mousewheel', this.onMousewheel, true)
+
         document.querySelector('body').addEventListener('mouseup', this.onMouseUp, true)
         document.querySelector('body').addEventListener('mousedown', this.onMousedown, true)
         document.querySelector('body').addEventListener('mousemove', this.onMouseMove, true)