diff --git a/tests/rounded_rectangle.scad b/tests/rounded_rectangle.scad
index fbb9b67..9daeb08 100644
--- a/tests/rounded_rectangle.scad
+++ b/tests/rounded_rectangle.scad
@@ -27,10 +27,13 @@ module rounded_rectangles() {
         rounded_rectangle([30, 20, 10], 3);
 
     translate([80, 0])
-        rounded_rectangle_xz([30, 20, 10], 3);
+        rounded_cube_xy([30, 20, 10], 3);
 
     translate([120, 0])
-        rounded_rectangle_yz([30, 20, 10], 3);
+        rounded_cube_xz([30, 20, 10], 3);
+
+    translate([160, 0])
+        rounded_cube_yz([30, 20, 10], 3);
 }
 
 rounded_rectangles();
diff --git a/utils/core/rounded_rectangle.scad b/utils/core/rounded_rectangle.scad
index ea7a231..bda28a9 100644
--- a/utils/core/rounded_rectangle.scad
+++ b/utils/core/rounded_rectangle.scad
@@ -32,16 +32,22 @@ module rounded_rectangle(size, r, center = true, xy_center = true) //! Like `cub
         rounded_square([size.x, size.y], r, xy_center);
 }
 
-module rounded_rectangle_xz(size, r, center = true, xy_center = true) //! Like `cube()` but corners rounded in XZ plane and separate centre options for xy and z.
+module rounded_cube_xy(size, r, center = false, xy_center = false) //! Like `cube()` but corners rounded in XY plane and separate centre options for xy and z.
+{
+    linear_extrude(size.z, center = center)
+        rounded_square([size.x, size.y], r, xy_center);
+}
+
+module rounded_cube_xz(size, r, center = false, xy_center = false) //! Like `cube()` but corners rounded in XZ plane and separate centre options for xy and z.
 {
     translate([xy_center ? 0 : size.x / 2, xy_center ? 0 : size.y / 2, center ? 0 : size.z / 2])
         rotate([90, 0, 0])
-            rounded_rectangle([size.x, size.z, size.y], r, center = true, xy_center = true);
+            rounded_cube_xy([size.x, size.z, size.y], r, center = true, xy_center = true);
 }
 
-module rounded_rectangle_yz(size, r, center = true, xy_center = true) //! Like `cube()` but corners rounded in YX plane and separate centre options for xy and z.
+module rounded_cube_yz(size, r, center = false, xy_center = false) //! Like `cube()` but corners rounded in YX plane and separate centre options for xy and z.
 {
     translate([xy_center ? 0 : size.x / 2, xy_center ? 0 : size.y / 2, center ? 0 : size.z / 2])
         rotate([90, 0, 90])
-            rounded_rectangle([size.y, size.z, size.x], r, center = true, xy_center = true);
+            rounded_cube_xy([size.y, size.z, size.x], r, center = true, xy_center = true);
 }