diff --git a/src/libs/utils/processenums.h b/src/libs/utils/processenums.h
index 1c16f22dcb4..6ea37a2d37a 100644
--- a/src/libs/utils/processenums.h
+++ b/src/libs/utils/processenums.h
@@ -24,7 +24,6 @@ enum class ProcessImpl {
 
 enum class TerminalMode {
     Off,
-    Pty,
     Run,
     Debug,
     Suspend,
diff --git a/src/libs/utils/processinterface.h b/src/libs/utils/processinterface.h
index 210df7d268a..5f3a4378d48 100644
--- a/src/libs/utils/processinterface.h
+++ b/src/libs/utils/processinterface.h
@@ -50,7 +50,7 @@ public:
     ProcessMode m_processMode = ProcessMode::Reader;
     TerminalMode m_terminalMode = TerminalMode::Off;
 
-    Pty::Data m_ptyData;
+    std::optional<Pty::Data> m_ptyData;
     CommandLine m_commandLine;
     FilePath m_workingDirectory;
     Environment m_environment;
diff --git a/src/libs/utils/qtcprocess.cpp b/src/libs/utils/qtcprocess.cpp
index 4808764ddde..a5de95d29db 100644
--- a/src/libs/utils/qtcprocess.cpp
+++ b/src/libs/utils/qtcprocess.cpp
@@ -310,7 +310,7 @@ private:
 class PtyProcessImpl final : public DefaultImpl
 {
 public:
-    ~PtyProcessImpl() { m_setup.m_ptyData.setResizeHandler({}); }
+    ~PtyProcessImpl() { QTC_CHECK(m_setup.m_ptyData); m_setup.m_ptyData->setResizeHandler({}); }
 
     qint64 write(const QByteArray &data) final
     {
@@ -338,7 +338,8 @@ public:
 
     void doDefaultStart(const QString &program, const QStringList &arguments) final
     {
-        m_setup.m_ptyData.setResizeHandler([this](const QSize &size) {
+        QTC_CHECK(m_setup.m_ptyData);
+        m_setup.m_ptyData->setResizeHandler([this](const QSize &size) {
             if (m_ptyProcess)
                 m_ptyProcess->resize(size.width(), size.height());
         });
@@ -357,8 +358,8 @@ public:
                                          arguments,
                                          m_setup.m_workingDirectory.path(),
                                          m_setup.m_environment.toProcessEnvironment().toStringList(),
-                                         m_setup.m_ptyData.size().width(),
-                                         m_setup.m_ptyData.size().height());
+                                         m_setup.m_ptyData->size().width(),
+                                         m_setup.m_ptyData->size().height());
 
         if (!startResult) {
             const ProcessResultData result = {-1,
@@ -725,16 +726,16 @@ public:
 
     ProcessInterface *createProcessInterface()
     {
-        if (m_setup.m_terminalMode == TerminalMode::Pty)
-            return new PtyProcessImpl();
+        if (m_setup.m_ptyData)
+            return new PtyProcessImpl;
         if (m_setup.m_terminalMode != TerminalMode::Off)
             return Terminal::Hooks::instance().createTerminalProcessInterfaceHook()();
 
         const ProcessImpl impl = m_setup.m_processImpl == ProcessImpl::Default
                                ? defaultProcessImpl() : m_setup.m_processImpl;
         if (impl == ProcessImpl::QProcess)
-            return new QProcessImpl();
-        return new ProcessLauncherImpl();
+            return new QProcessImpl;
+        return new ProcessLauncherImpl;
     }
 
     void setProcessInterface(ProcessInterface *process)
@@ -1123,12 +1124,12 @@ void QtcProcess::setProcessImpl(ProcessImpl processImpl)
     d->m_setup.m_processImpl = processImpl;
 }
 
-void QtcProcess::setPtyData(const Pty::Data &data)
+void QtcProcess::setPtyData(const std::optional<Pty::Data> &data)
 {
     d->m_setup.m_ptyData = data;
 }
 
-Pty::Data QtcProcess::ptyData() const
+std::optional<Pty::Data> QtcProcess::ptyData() const
 {
     return d->m_setup.m_ptyData;
 }
diff --git a/src/libs/utils/qtcprocess.h b/src/libs/utils/qtcprocess.h
index 72181051491..9d539f08e20 100644
--- a/src/libs/utils/qtcprocess.h
+++ b/src/libs/utils/qtcprocess.h
@@ -77,8 +77,8 @@ public:
 
     void setProcessImpl(ProcessImpl processImpl);
 
-    void setPtyData(const Pty::Data &data);
-    Pty::Data ptyData() const;
+    void setPtyData(const std::optional<Pty::Data> &data);
+    std::optional<Pty::Data> ptyData() const;
 
     void setTerminalMode(TerminalMode mode);
     TerminalMode terminalMode() const;
diff --git a/src/plugins/docker/dockerdevice.cpp b/src/plugins/docker/dockerdevice.cpp
index e96ce9d6a47..020aeec31f4 100644
--- a/src/plugins/docker/dockerdevice.cpp
+++ b/src/plugins/docker/dockerdevice.cpp
@@ -304,7 +304,7 @@ void DockerProcessImpl::start()
                                              m_setup.m_workingDirectory,
                                              interactive,
                                              true,
-                                             m_setup.m_terminalMode == TerminalMode::Pty);
+                                             m_setup.m_ptyData.has_value());
 
     m_process.setCommand(fullCommandLine);
     m_process.start();
diff --git a/src/plugins/remotelinux/linuxdevice.cpp b/src/plugins/remotelinux/linuxdevice.cpp
index 345f6e28497..57eaf8ccd14 100644
--- a/src/plugins/remotelinux/linuxdevice.cpp
+++ b/src/plugins/remotelinux/linuxdevice.cpp
@@ -535,7 +535,7 @@ QString LinuxProcessInterface::fullCommandLine(const CommandLine &commandLine) c
         cmd.addArgs("&&", CommandLine::Raw);
     }
 
-    if (m_setup.m_terminalMode == TerminalMode::Off)
+    if (m_setup.m_terminalMode == TerminalMode::Off && !m_setup.m_ptyData)
         cmd.addArgs(QString("echo ") + s_pidMarker + "$$" + s_pidMarker + " && ", CommandLine::Raw);
 
     const Environment &env = m_setup.m_environment;
@@ -543,7 +543,7 @@ QString LinuxProcessInterface::fullCommandLine(const CommandLine &commandLine) c
         cmd.addArgs(key + "='" + env.expandVariables(value) + '\'', CommandLine::Raw);
     });
 
-    if (m_setup.m_terminalMode == TerminalMode::Off)
+    if (m_setup.m_terminalMode == TerminalMode::Off && !m_setup.m_ptyData)
         cmd.addArg("exec");
 
     if (!commandLine.isEmpty())
@@ -555,7 +555,7 @@ void LinuxProcessInterface::handleStarted(qint64 processId)
 {
     // Don't emit started() when terminal is off,
     // it's being done later inside handleReadyReadStandardOutput().
-    if (m_setup.m_terminalMode == TerminalMode::Off)
+    if (m_setup.m_terminalMode == TerminalMode::Off && !m_setup.m_ptyData)
         return;
 
     m_pidParsed = true;
@@ -740,7 +740,7 @@ CommandLine SshProcessInterfacePrivate::fullLocalCommandLine() const
 
     if (!m_sshParameters.x11DisplayName.isEmpty())
         cmd.addArg("-X");
-    if (q->m_setup.m_terminalMode != TerminalMode::Off)
+    if (q->m_setup.m_terminalMode != TerminalMode::Off || q->m_setup.m_ptyData)
         cmd.addArg("-tt");
 
     cmd.addArg("-q");
diff --git a/src/plugins/terminal/terminalwidget.cpp b/src/plugins/terminal/terminalwidget.cpp
index 0321c0ce5ca..23da5088ce9 100644
--- a/src/plugins/terminal/terminalwidget.cpp
+++ b/src/plugins/terminal/terminalwidget.cpp
@@ -126,7 +126,7 @@ void TerminalWidget::setupPty()
         env.unset("CLINK_NOAUTORUN");
 
     m_process->setProcessMode(ProcessMode::Writer);
-    m_process->setTerminalMode(TerminalMode::Pty);
+    m_process->setPtyData(Utils::Pty::Data());
     m_process->setCommand(shellCommand);
     if (m_openParameters.workingDirectory.has_value())
         m_process->setWorkingDirectory(*m_openParameters.workingDirectory);
@@ -912,8 +912,8 @@ void TerminalWidget::applySizeChange()
     if (newLiveSize.width() <= 0)
         newLiveSize.setWidth(1);
 
-    if (m_process)
-        m_process->ptyData().resize(newLiveSize);
+    if (m_process && m_process->ptyData())
+        m_process->ptyData()->resize(newLiveSize);
 
     m_surface->resize(newLiveSize);
     flushVTerm(true);