diff --git a/testdata/performance/irma-server.js b/testdata/performance/irma-server.js
index 3c4b997a..8aa5f208 100644
--- a/testdata/performance/irma-server.js
+++ b/testdata/performance/irma-server.js
@@ -17,7 +17,7 @@ function checkResponse(response, expectedOutput = '') {
     'verify status code': (r) => r.status === 200,
     'verify body': (r) => r.body != null && r.body.includes(expectedOutput),
   });
-  if (!checkOutput) fail(`unexpected response: status ${response.status}, error "${response.error}", body "${response.body}"`);
+  if (!checkOutput) fail(`unexpected response: url ${response.request.url}, status ${response.status}, error "${response.error}", body "${response.body}"`);
 }
 
 export default function () {
diff --git a/testdata/performance/keyshare-server.js b/testdata/performance/keyshare-server.js
index 5c84e3a3..4bba16ad 100644
--- a/testdata/performance/keyshare-server.js
+++ b/testdata/performance/keyshare-server.js
@@ -20,7 +20,7 @@ function checkResponse(response, expectedOutput = '') {
     'verify status code': (r) => r.status === 200,
     'verify body': (r) => r.body != null && r.body.includes(expectedOutput),
   });
-  if (!checkOutput) fail(`unexpected response: status ${response.status}, error "${response.error}", body "${response.body}"`);
+  if (!checkOutput) fail(`unexpected response: url ${response.request.url}, status ${response.status}, error "${response.error}", body "${response.body}"`);
 }
 
 export function setup() {
@@ -70,6 +70,7 @@ export default function ({ testAccounts }) {
   const testAccount = testAccounts[vu.idInTest - 1];
 
   const pinResp = http.post(`${url}/users/verify/pin`, JSON.stringify(testAccount));
+  checkResponse(pinResp);
 
   const proveParams = {
     headers: {