diff --git a/boxes/generators/__init__.py b/boxes/generators/__init__.py
index 0e3e82a..a723b0f 100644
--- a/boxes/generators/__init__.py
+++ b/boxes/generators/__init__.py
@@ -25,6 +25,7 @@ ui_groups = [
     UIGroup("Tray", "Trays and Drawer Inserts"),
     UIGroup("Shelf", "Shelves"),
     UIGroup("SlatWall"),
+    UIGroup("Holes", "Hole patterns"),
     UIGroup("Part", "Parts and Samples"),
     UIGroup("Misc"),
     UIGroup("Unstable", description="Generators are still untested or need manual adjustment to be useful."),