diff --git a/cura/CuraApplication.py b/cura/CuraApplication.py
index ff70a2e25c..7be20305c4 100644
--- a/cura/CuraApplication.py
+++ b/cura/CuraApplication.py
@@ -632,7 +632,7 @@ class CuraApplication(QtApplication):
         if not scene_bounding_box:
             scene_bounding_box = AxisAlignedBox.Null
 
-        if repr(self._scene_bounding_box) != repr(scene_bounding_box):
+        if repr(self._scene_bounding_box) != repr(scene_bounding_box) and scene_bounding_box.isValid():
             self._scene_bounding_box = scene_bounding_box
             self.sceneBoundingBoxChanged.emit()