diff --git a/apps/api/src/app/exchange-rate/exchange-rate.controller.ts b/apps/api/src/app/exchange-rate/exchange-rate.controller.ts
index e888f8cfb..ca9b67ced 100644
--- a/apps/api/src/app/exchange-rate/exchange-rate.controller.ts
+++ b/apps/api/src/app/exchange-rate/exchange-rate.controller.ts
@@ -25,13 +25,13 @@ export class ExchangeRateController {
   ): Promise<IDataProviderHistoricalResponse> {
     const date = new Date(dateString);
 
-    const { marketPrice } = await this.exchangeRateService.getExchangeRate({
+    const exchangeRate = await this.exchangeRateService.getExchangeRate({
       date,
       symbol
     });
 
-    if (marketPrice) {
-      return { marketPrice };
+    if (exchangeRate) {
+      return { marketPrice: exchangeRate };
     }
 
     throw new HttpException(
diff --git a/apps/api/src/app/exchange-rate/exchange-rate.service.ts b/apps/api/src/app/exchange-rate/exchange-rate.service.ts
index be7f3d55f..d340bb5b3 100644
--- a/apps/api/src/app/exchange-rate/exchange-rate.service.ts
+++ b/apps/api/src/app/exchange-rate/exchange-rate.service.ts
@@ -1,5 +1,4 @@
 import { ExchangeRateDataService } from '@ghostfolio/api/services/exchange-rate-data.service';
-import { IDataProviderHistoricalResponse } from '@ghostfolio/api/services/interfaces/interfaces';
 import { Injectable } from '@nestjs/common';
 
 @Injectable()
@@ -14,16 +13,14 @@ export class ExchangeRateService {
   }: {
     date: Date;
     symbol: string;
-  }): Promise<IDataProviderHistoricalResponse> {
+  }): Promise<number> {
     const [currency1, currency2] = symbol.split('-');
 
-    const marketPrice = await this.exchangeRateDataService.toCurrencyAtDate(
+    return this.exchangeRateDataService.toCurrencyAtDate(
       1,
       currency1,
       currency2,
       date
     );
-
-    return { marketPrice };
   }
 }