diff --git a/src/helper/irs-api.ts b/src/helper/irs-api.ts
index bd38b3b..92d1e2f 100644
--- a/src/helper/irs-api.ts
+++ b/src/helper/irs-api.ts
@@ -83,13 +83,18 @@ export const doTransaction = async (
         var responseVoca = res.data.data;
     console.log('iniresponsevoca', responseVoca)
     if (responseVoca != null) {
+      const endpointDetail = `/transaction/${responseVoca.invoiceId}/detail`;
+      const signatureDetail = createHmac('sha256', secretKey)
+          .update(merchantId + endpointDetail)
+          .digest('hex');
       const resDetail = await axios.get(
-          `${supplier.url}/v1/core/transaction/${responseVoca.invoiceId}/detail?signature=${signature}`,
+          `${supplier.url}/v1/core/transaction/${responseVoca.invoiceId}/detail?signature=${signatureDetail}`,
           options,
       );
 
       return resDetail.data
     }
+
     } else if (supplier.code == 'Digiflazz') {
       if (typePaid == 'INQUIRY') {
         const md5HashDigiflazz = `${supplier.irs_user}${supplier.irs_pass}${idtrx}`;