diff --git a/cura/BuildVolume.py b/cura/BuildVolume.py
index d7ca937009..ed3e77ec2a 100644
--- a/cura/BuildVolume.py
+++ b/cura/BuildVolume.py
@@ -226,7 +226,7 @@ class BuildVolume(SceneNode):
             if self._width != 0:
                 # Scale circular meshes by aspect ratio if width != height
                 aspect = self._height / self._width
-                scale_matrix.compose(Vector(1, 1, aspect))
+                scale_matrix.compose(scale = Vector(1, 1, aspect))
             mb = MeshBuilder()
             mb.addArc(max_w, Vector.Unit_Y, center = (0, min_h - z_fight_distance, 0), color = self.VolumeOutlineColor)
             mb.addArc(max_w, Vector.Unit_Y, center = (0, max_h, 0),  color = self.VolumeOutlineColor)
diff --git a/resources/definitions/fdmprinter.def.json b/resources/definitions/fdmprinter.def.json
index b18971dda8..0835167775 100644
--- a/resources/definitions/fdmprinter.def.json
+++ b/resources/definitions/fdmprinter.def.json
@@ -141,7 +141,7 @@
                 {
                     "label": "Build plate shape",
                     "description": "The shape of the build plate without taking unprintable areas into account.",
-                    "default_value": "Rectangular",
+                    "default_value": "rectangular",
                     "type": "enum",
                     "options":
                     {