diff --git a/data-final-fixes.lua b/data-final-fixes.lua
index 91bdfb8..8f739e4 100644
--- a/data-final-fixes.lua
+++ b/data-final-fixes.lua
@@ -14,7 +14,7 @@ if mods["space-exploration"] then
   data.raw.recipe["aluminum-plate"].subgroup = "plates"
 
   -- core mining balancing
-  util.add_to_product("se-core-fragment-omni", "aluminum-ore", -3)
+  util.add_to_product("se-core-fragment-omni", "aluminum-ore", -2)
 end
 
 if mods.bzsilicon then