diff --git a/frontend/js/app.js b/frontend/js/app.js
index b250fa6..0b67738 100644
--- a/frontend/js/app.js
+++ b/frontend/js/app.js
@@ -4,6 +4,7 @@
 import { GState } from './core/state.js';
 import { SimulationEngine } from './core/engine.js';
 import { SyncManager } from './core/sync.js';
+import { fmtCurrency, fmtNum, fmtRate, getNotation, setNotation } from './core/formatters.js';
 import { PRODUCTS, SECTORS, getProduct } from './data/products.js';
 import { mountProductionFloor, updateProductionFloor, calculateMultiCost } from './ui/productionView.js';
 import { mountContractsBoard, updateContractsBoard } from './ui/contractsView.js';