diff --git a/bzgold2/data-util.lua b/bzgold2/data-util.lua
index 33619f2..8c0697f 100644
--- a/bzgold2/data-util.lua
+++ b/bzgold2/data-util.lua
@@ -168,7 +168,11 @@ function util.k2matter(params)
           },
         })
   end
-  matter.make_recipes(params.k2matter)
+  if params.k2matter.only_deconversion then
+    matter.make_deconversion_recipe(params.k2matter)
+  else
+    matter.make_recipes(params.k2matter)
+  end
 end