diff --git a/QuickStackToBag/Lua/Autorun/init.lua b/QuickStackToBag/Lua/Autorun/init.lua
index cc206fc..024ec62 100644
--- a/QuickStackToBag/Lua/Autorun/init.lua
+++ b/QuickStackToBag/Lua/Autorun/init.lua
@@ -650,19 +650,25 @@ Hook.Patch("Barotrauma.Character", "ControlLocalPlayer", function(instance, ptab
             local items = cargoManager:GetBuyCrateItems(store)
             for item in items do
                 -- We have already added this many of item
-                toAdd[item.ItemPrefab.Identifier.Value] = -item.Quantity
+                toAdd[item.ItemPrefab.Identifier.Value] = {
+                    quantity = -item.Quantity,
+                    prefab = item.ItemPrefab -- Store the ItemPrefab object
+                }
             end
             for item in store.Stock do
                 -- So if we add the total amount available
                 -- We get the amount we have to add to buy entire stock
-                if toAdd[item.ItemPrefab.Identifier.Value] then
-                    toAdd[item.ItemPrefab.Identifier.Value] = toAdd[item.ItemPrefab.Identifier.Value] + item.Quantity
+                local idValue = item.ItemPrefab.Identifier.Value
+                if toAdd[idValue] then
+                    toAdd[idValue].quantity = toAdd[idValue].quantity + item.Quantity
                 end
             end
-            for item, amount in pairs(toAdd) do
-                if amount > 0 then
-                    print(string.format("Adding %d of %s to the buy crate", amount, item))
-                    cargoManager.ModifyItemQuantityInBuyCrate(store.Identifier, item, amount)
+
+            for idValue, info in pairs(toAdd) do
+                if info.quantity > 0 then
+                    print(string.format("Adding %d of %s to the buy crate", info.quantity, idValue))
+                    -- Use the stored ItemPrefab object, not the string identifier
+                    cargoManager:ModifyItemQuantityInBuyCrate(store.Identifier, info.prefab, info.quantity)
                 end
             end
         end