diff --git a/README.md b/README.md
index dc068fb5..79fae9af 100644
--- a/README.md
+++ b/README.md
@@ -226,6 +226,9 @@ See [examples](examples).
 - [voxel/vx_from](https://openhome.cc/eGossip/OpenSCAD/lib2x-vx_from.html)
 - [voxel/vx_ascii](https://openhome.cc/eGossip/OpenSCAD/lib2x-vx_ascii.html)
 - [voxel/vx_gray](https://openhome.cc/eGossip/OpenSCAD/lib2x-vx_gray.html)
+- vx_union
+- vx_intersection
+- vx_difference
 
 ----