diff --git a/frontend/src/lib/format.ts b/frontend/src/lib/format.ts
index 4c5ecf7..90592be 100644
--- a/frontend/src/lib/format.ts
+++ b/frontend/src/lib/format.ts
@@ -1,5 +1,9 @@
-export function formatCurrency(amount: number, currency: string = 'EUR'): string {
-  return new Intl.NumberFormat('de-DE', {
+export function formatCurrency(
+  amount: number,
+  currency: string = 'EUR',
+  locale: string = 'en'
+): string {
+  return new Intl.NumberFormat(locale || 'en', {
     style: 'currency',
     currency,
   }).format(amount)