diff --git a/src/rest/stock/ownership/etf-holdings.ts b/src/rest/stock/ownership/etf-holdings.ts
index abfe7eb..d3b58d4 100644
--- a/src/rest/stock/ownership/etf-holdings.ts
+++ b/src/rest/stock/ownership/etf-holdings.ts
@@ -5,7 +5,6 @@ export interface RestStockOwnershipEtfHoldingsParams {
   from?: string;
   to?: string;
   sort?: 'asc' | 'desc';
-  code?: string;
 }
 
 export interface RestStockOwnershipEtfHoldingsComponent {
diff --git a/test/rest-client.spec.ts b/test/rest-client.spec.ts
index 612461c..ba2693a 100644
--- a/test/rest-client.spec.ts
+++ b/test/rest-client.spec.ts
@@ -340,9 +340,9 @@ describe('RestClient', () => {
         it('should request with query params', async () => {
           const client = new RestClient({ apiKey: 'api-key' });
           const stock = client.stock as RestStockClient;
-          await stock.ownership.etfHoldings({ symbol: '0050', from: '2026-05-01', to: '2026-05-21', sort: 'desc', code: '2330' });
+          await stock.ownership.etfHoldings({ symbol: '0050', from: '2026-05-01', to: '2026-05-21', sort: 'desc' });
           expect(fetch).toBeCalledWith(
-            'https://api.fugle.tw/marketdata/v1.0/stock/ownership/etf-holdings/0050?code=2330&from=2026-05-01&sort=desc&to=2026-05-21',
+            'https://api.fugle.tw/marketdata/v1.0/stock/ownership/etf-holdings/0050?from=2026-05-01&sort=desc&to=2026-05-21',
             { headers: { 'X-API-KEY': 'api-key' } },
           );
         });