diff --git a/src/plugins/autotest/ctest/ctesttreeitem.cpp b/src/plugins/autotest/ctest/ctesttreeitem.cpp
index a09f2172f33..73c3481f970 100644
--- a/src/plugins/autotest/ctest/ctesttreeitem.cpp
+++ b/src/plugins/autotest/ctest/ctesttreeitem.cpp
@@ -122,8 +122,10 @@ QList<ITestConfiguration *> CTestTreeItem::testConfigurationsFor(const QStringLi
         if (auto envAspect = runConfig->aspect<ProjectExplorer::EnvironmentAspect>())
             env = envAspect->environment();
     }
-    if (Utils::HostOsInfo::isWindowsHost())
+    if (Utils::HostOsInfo::isWindowsHost()) {
+        env.set("QT_FORCE_STDERR_LOGGING", "1");
         env.set("QT_LOGGING_TO_CONSOLE", "1");
+    }
     config->setEnvironment(env);
     const ProjectExplorer::BuildConfiguration *buildConfig = target->activeBuildConfiguration();
     if (QTC_GUARD(buildConfig))
diff --git a/src/plugins/autotest/qtest/qttest_utils.cpp b/src/plugins/autotest/qtest/qttest_utils.cpp
index e3ff48174f4..8f945367066 100644
--- a/src/plugins/autotest/qtest/qttest_utils.cpp
+++ b/src/plugins/autotest/qtest/qttest_utils.cpp
@@ -153,8 +153,10 @@ QStringList filterInterfering(const QStringList &provided, QStringList *omitted,
 Utils::Environment prepareBasicEnvironment(const Utils::Environment &env)
 {
     Utils::Environment result(env);
-    if (Utils::HostOsInfo::isWindowsHost())
+    if (Utils::HostOsInfo::isWindowsHost()) {
+        result.set("QT_FORCE_STDERR_LOGGING", "1");
         result.set("QT_LOGGING_TO_CONSOLE", "1");
+    }
     const int timeout = AutotestPlugin::settings()->timeout;
     if (timeout > 5 * 60 * 1000) // Qt5.5 introduced hard limit, Qt5.6.1 added env var to raise this
         result.set("QTEST_FUNCTION_TIMEOUT", QString::number(timeout));