diff --git a/sender.cpp b/sender.cpp
index 7e2cee5..da00742 100644
--- a/sender.cpp
+++ b/sender.cpp
@@ -19,6 +19,7 @@ Sender::Sender(QObject *parent) : QObject(parent)
     QSettings settings;
     sendTimer->setInterval(settings.value("core/senderinterval", 2).toInt());
     sendingChecksum = settings.value("core/checksums", 0).toBool();
+    dtr = settings.value("core/dtr", 1).toBool();
 
     sendTimer->start();
 
@@ -121,6 +122,7 @@ void Sender::openPort(QSerialPortInfo i)
     if(!printer->isOpen() && printer->open(QIODevice::ReadWrite))
     {
         //Moved here to be compatible with Qt 5.2.1
+        printer->setDataTerminalReady(dtr);
         if(!printer->setBaudRate(baudrate))
             emit baudrateSetFailed(baudrate);
         printer->setFlowControl(QSerialPort::HardwareControl);
diff --git a/sender.h b/sender.h
index 8baf9b8..e456fb3 100644
--- a/sender.h
+++ b/sender.h
@@ -29,6 +29,7 @@ protected:
     unsigned int baudrate;
     bool paused;
     bool sending;
+    bool dtr;
     bool readyRecieve;
     bool sendingChecksum;
     bool resending;
diff --git a/settingswindow.cpp b/settingswindow.cpp
index 2f5dfd9..407b287 100644
--- a/settingswindow.cpp
+++ b/settingswindow.cpp
@@ -19,6 +19,7 @@ SettingsWindow::SettingsWindow(QWidget *parent) :
     ui->lockbox->setChecked(settings.value("core/lockcontrols", 0).toBool());
     ui->checksumbox->setChecked(settings.value("core/checksums", 0).toBool());
     ui->sdbox->setChecked(settings.value("core/checksdstatus", 1).toBool());
+    ui->dtrbox->setChecked(settings.value("core/dtr", 1).toBool());
 
     ui->firmwarecombo->addItem("Marlin"); //0
     ui->firmwarecombo->addItem("Repetier"); //1
@@ -51,5 +52,6 @@ void SettingsWindow::on_buttonBox_accepted()
     settings.setValue("core/lockcontrols", ui->lockbox->isChecked());
     settings.setValue("core/checksums", ui->checksumbox->isChecked());
     settings.setValue("core/checksdstatus", ui->sdbox->isChecked());
+    settings.setValue("core/dtr", ui->dtrbox->isChecked());
     settings.setValue("printer/firmware", ui->firmwarecombo->currentIndex());
 }
diff --git a/settingswindow.ui b/settingswindow.ui
index b89a53d..bffadbe 100644
--- a/settingswindow.ui
+++ b/settingswindow.ui
@@ -99,7 +99,7 @@
         </property>
        </widget>
       </item>
-      <item row="4" column="0" colspan="3">
+      <item row="5" column="0" colspan="3">
        <widget class="QCheckBox" name="lockbox">
         <property name="text">
          <string>Lock controls when printing</string>
@@ -113,14 +113,14 @@
         </property>
        </widget>
       </item>
-      <item row="5" column="0" colspan="3">
+      <item row="6" column="0" colspan="3">
        <widget class="QCheckBox" name="sdbox">
         <property name="text">
          <string>Check SD printing status</string>
         </property>
        </widget>
       </item>
-      <item row="6" column="0">
+      <item row="7" column="0">
        <widget class="QCheckBox" name="checksumbox">
         <property name="enabled">
          <bool>true</bool>
@@ -152,6 +152,13 @@
         </property>
        </widget>
       </item>
+      <item row="4" column="0">
+       <widget class="QCheckBox" name="dtrbox">
+        <property name="text">
+         <string>DTR</string>
+        </property>
+       </widget>
+      </item>
      </layout>
     </widget>
    </item>