diff --git a/tests/auto/utils/qtcprocess/tst_qtcprocess.cpp b/tests/auto/utils/qtcprocess/tst_qtcprocess.cpp
index 9987781c9cc..a5f00166808 100644
--- a/tests/auto/utils/qtcprocess/tst_qtcprocess.cpp
+++ b/tests/auto/utils/qtcprocess/tst_qtcprocess.cpp
@@ -1017,7 +1017,7 @@ void tst_QtcProcess::LineCallback::main()
 {
 #ifdef Q_OS_WIN
     // Prevent \r\n -> \r\r\n translation.
-    setmode(fileno(stderr), O_BINARY);
+    _setmode(_fileno(stderr), O_BINARY);
 #endif
     fprintf(stderr, "%s", QByteArray(lineCallbackData).replace('|', "").data());
     exit(0);