diff --git a/tests/auto/corelib/tools/qmessageauthenticationcode/tst_qmessageauthenticationcode.cpp b/tests/auto/corelib/tools/qmessageauthenticationcode/tst_qmessageauthenticationcode.cpp
index 85138a6402..c49cd538d2 100644
--- a/tests/auto/corelib/tools/qmessageauthenticationcode/tst_qmessageauthenticationcode.cpp
+++ b/tests/auto/corelib/tools/qmessageauthenticationcode/tst_qmessageauthenticationcode.cpp
@@ -147,8 +147,7 @@ void tst_QMessageAuthenticationCode::result()
     QFETCH(QByteArray, message);
     QFETCH(QByteArray, code);
 
-    QMessageAuthenticationCode mac(algo);
-    mac.setKey(key);
+    QMessageAuthenticationCode mac(algo, key);
     mac.addData(message);
     QByteArrayView resultView = mac.resultView();
 
@@ -176,8 +175,7 @@ void tst_QMessageAuthenticationCode::result_incremental()
 
     QCOMPARE(leftPart + rightPart, message);
 
-    QMessageAuthenticationCode mac(algo);
-    mac.setKey(key);
+    QMessageAuthenticationCode mac(algo, key);
     mac.addData(leftPart);
     mac.addData(rightPart);
     QByteArrayView result = mac.resultView();