Flickable area is going over my content Item

I am using a Flickable area to be able to scroll over a list of entries in a ListView. I am showing here just a small part of my code:

Code:

---

Rectangle {
    id: contentRect
    width: 500
    height: 800
    clip: true    
 
    Flickable {
        contentHeight: myListView.height
 
        ListView {
            id: myListView
            //... fill it with some values
        }
    }
}

---

However, when I scroll over the flickable area, the ListView gets painted over the borders of the contentRect.

In order to solve this, I added the property "clip: true" into the rectangle. But I don't think this is a good solution. Is there any other way I can control this behavior?