diff --git a/lignumis/prototypes/content/burner-assembling-machine.lua b/lignumis/prototypes/content/burner-assembling-machine.lua
index e6bdc0a..dbf2baa 100644
--- a/lignumis/prototypes/content/burner-assembling-machine.lua
+++ b/lignumis/prototypes/content/burner-assembling-machine.lua
@@ -15,6 +15,7 @@ assembling_machine.crafting_categories = {
     "basic-crafting",
     "crafting",
     "electronics",
+    "pressing",
     "wood-processing-or-assembling",
     "organic-or-assembling",
     "electronics-or-assembling",
diff --git a/lignumis/prototypes/content/steam-assembling-machine.lua b/lignumis/prototypes/content/steam-assembling-machine.lua
index 8ed6512..ffd3265 100644
--- a/lignumis/prototypes/content/steam-assembling-machine.lua
+++ b/lignumis/prototypes/content/steam-assembling-machine.lua
@@ -19,6 +19,7 @@ assembling_machine.crafting_categories = {
     "basic-crafting",
     "crafting",
     "electronics",
+    "pressing",
     "wood-processing-or-assembling",
     "organic-or-assembling",
     "electronics-or-assembling",