diff --git a/lignumis/prototypes/content/mid-game-recipes.lua b/lignumis/prototypes/content/mid-game-recipes.lua
index 7dec68e..a7f5e79 100644
--- a/lignumis/prototypes/content/mid-game-recipes.lua
+++ b/lignumis/prototypes/content/mid-game-recipes.lua
@@ -171,7 +171,7 @@ data:extend({
     {
         type = "recipe",
         name = "nutrients-from-wood-pulp",
-        category = "chemistry",
+        category = "organic-or-chemistry",
         energy_required = 1,
         enabled = false,
         auto_recycle = false,