diff --git a/cura/ConvexHullDecorator.py b/cura/ConvexHullDecorator.py
index 1f1bc5db34..f16c2a295e 100644
--- a/cura/ConvexHullDecorator.py
+++ b/cura/ConvexHullDecorator.py
@@ -18,7 +18,12 @@ class ConvexHullDecorator(SceneNodeDecorator):
         self._profile = None
         Application.getInstance().getMachineManager().activeProfileChanged.connect(self._onActiveProfileChanged)
         self._onActiveProfileChanged()
-    
+
+    ## Force that a new (empty) object is created upon copy.
+    def __deepcopy__(self, memo):
+        copy = ConvexHullDecorator()
+        return copy
+
     def getConvexHull(self):
         return self._convex_hull