diff --git a/compacting-storage.lua b/compacting-storage.lua
index 2e51a16..363b665 100644
--- a/compacting-storage.lua
+++ b/compacting-storage.lua
@@ -79,19 +79,19 @@ function craft_multiple (item_type, conversion_type, count)
 end
 
 function execute_crafts (item_type, crafts)
-    local form = "nuggets"
-    if crafts[form] > 0 then
+    local num_crafts = crafts.nuggets
+    if num_crafts > 0 then
         print(("Crafting %s nuggets"):format(item_type))
         craft_multiple(item_type, 4, num_crafts)
-    elseif crafts[form] < 0 then
+    elseif num_crafts < 0 then
         print(("Crafting %s ingots"):format(item_type))
         craft_multiple(item_type, 1, -num_crafts)
     end
-    form = "blocks"
-    if crafts[form] > 0 then
+    num_crafts = crafts.blocks
+    if num_crafts > 0 then
         print(("Crafting %s blocks"):format(item_type))
         craft_multiple(item_type, 2, num_crafts)
-    elseif crafts[form] < 0 then
+    elseif num_crafts < 0 then
         print(("Crafting %s ingots"):format(item_type))
         craft_multiple(item_type, 3, -num_crafts)
     end