diff --git a/app.js b/app.js
index afbd875..42b018b 100644
--- a/app.js
+++ b/app.js
@@ -95,7 +95,7 @@ app.get("/api/building/:id", async (req, res) => {
     }
 
     const [nextLevel] = await db.query(
-      "SELECT required_points, wood, stone FROM building_levels WHERE building_id=? AND level=?",
+      "SELECT required_points, wood, stone, gold FROM building_levels WHERE building_id=? AND level=?",
       [buildingId, building.level + 1],
     );