diff --git a/data-final-fixes.lua b/data-final-fixes.lua
index 6f45edf..4d17659 100644
--- a/data-final-fixes.lua
+++ b/data-final-fixes.lua
@@ -1,5 +1,5 @@
 require("tin-recipe-final-stacking")
-require("tin-recipe-modules")
+require("modules")
 -- require("tin-recipe-final-5d")
 
 local util = require("data-util");
diff --git a/modules.lua b/modules.lua
new file mode 100644
index 0000000..f942126
--- /dev/null
+++ b/modules.lua
@@ -0,0 +1,15 @@
+recipes = {"bakelite", "phenol"} -- formaldehyde excluded intentionally for theme
+
+for i, recipe in pairs(recipes) do
+  if data.raw.recipe[recipe] then
+    for j, module in pairs(data.raw.module) do
+      if module.effect then
+        for effect_name, effect in pairs(module.effect) do
+          if effect_name == "productivity" and effect.bonus > 0 and module.limitation and #module.limitation > 0 then
+            table.insert(module.limitation, recipe)
+          end
+        end
+      end
+    end
+  end
+end