diff --git a/aluminum-recipe-updates-lds.lua b/aluminum-recipe-updates-lds.lua
index 653a7fd..59ed9c9 100644
--- a/aluminum-recipe-updates-lds.lua
+++ b/aluminum-recipe-updates-lds.lua
@@ -1,5 +1,6 @@
 local util = require("data-util");
 -- LDS
+util.add_prerequisite("low-density-structure", "aerospace-alloys")
 util.remove_ingredient("low-density-structure", "copper-plate")
 util.remove_ingredient("low-density-structure", "steel-plate")
 util.remove_ingredient("low-density-structure", "titanium-plate")