diff --git a/src/plugins/qmldesigner/designercore/instances/puppetstarter.cpp b/src/plugins/qmldesigner/designercore/instances/puppetstarter.cpp
index 8f43fedfafe..37a57e6a450 100644
--- a/src/plugins/qmldesigner/designercore/instances/puppetstarter.cpp
+++ b/src/plugins/qmldesigner/designercore/instances/puppetstarter.cpp
@@ -35,7 +35,7 @@ QProcessUniquePointer puppetProcess(const QString &puppetPath,
                      processFinishCallback);
 
     if (forwardOutput == puppetMode || forwardOutput == "all") {
-        puppetProcess->setProcessChannelMode(QProcess::ForwardedChannels);
+        puppetProcess->setProcessChannelMode(QProcess::MergedChannels);
         QObject::connect(puppetProcess.get(), &QProcess::readyRead, processOutputCallback);
     }
     puppetProcess->setWorkingDirectory(workingDirectory);