diff --git a/cura/BuildVolume.py b/cura/BuildVolume.py
index feb8bdc5bf..b52ba095fc 100755
--- a/cura/BuildVolume.py
+++ b/cura/BuildVolume.py
@@ -495,8 +495,7 @@ class BuildVolume(SceneNode):
         color = self._disallowed_area_color
         for polygon in self._disallowed_areas:
             intersection = polygon.intersectionConvexHulls(bounding_box)
-
-            points = intersection.getPoints()[::-1]
+            points = numpy.fliplr(intersection.getPoints())
             if len(points) < 3:
                 continue