diff --git a/lignumis/prototypes/content/steam-assembling-machine.lua b/lignumis/prototypes/content/steam-assembling-machine.lua
index 687ed02..e8138e4 100644
--- a/lignumis/prototypes/content/steam-assembling-machine.lua
+++ b/lignumis/prototypes/content/steam-assembling-machine.lua
@@ -18,6 +18,7 @@ gfx .. "steam-assembling-machine.png"
 assembling_machine.crafting_categories = {
     "basic-crafting",
     "crafting",
+    "advanced-crafting",
     "electronics",
     "pressing",
     "organic-or-assembling",