diff --git a/game.js b/game.js
index 3dc6353..39b4647 100644
--- a/game.js
+++ b/game.js
@@ -2102,19 +2102,20 @@ function renderBuildings() {
         let qty = G.buyAmount;
         let afford = false;
         let costStr = '';
+        let bulkCost = {};
         if (qty === -1) {
             const maxQty = getMaxBuyable(def.id);
             afford = maxQty > 0;
             if (maxQty > 0) {
-                const bulkCost = getBulkCost(def.id, maxQty);
+                bulkCost = getBulkCost(def.id, maxQty);
                 costStr = Object.entries(bulkCost).map(([r, a]) => `${fmt(a)} ${r}`).join(', ');
                 costStr = `x${maxQty}: ${costStr}`;
             } else {
-                const singleCost = getBuildingCost(def.id);
-                costStr = Object.entries(singleCost).map(([r, a]) => `${fmt(a)} ${r}`).join(', ');
+                bulkCost = getBuildingCost(def.id);
+                costStr = Object.entries(bulkCost).map(([r, a]) => `${fmt(a)} ${r}`).join(', ');
             }
         } else {
-            const bulkCost = getBulkCost(def.id, qty);
+            bulkCost = getBulkCost(def.id, qty);
             afford = true;
             for (const [resource, amount] of Object.entries(bulkCost)) {
                 if ((G[resource] || 0) < amount) { afford = false; break; }