diff --git a/src/common/Constants.h.in b/src/common/Constants.h.in

index f7e31e4..654331d 100644

--- a/src/common/Constants.h.in

+++ b/src/common/Constants.h.in

@@ -33,6 +33,7 @@

 #define CONFIG_FILE                 "@CONFIG_FILE@"

 #define LOG_FILE                    "@LOG_FILE@"

+#define PID_FILE                    "@PID_FILE@"

 #define MINIMUM_VT                  @MINIMUM_VT@

 #define HALT_COMMAND "@HALT_COMMAND@"

diff --git a/src/daemon/DaemonApp.cpp b/src/daemon/DaemonApp.cpp

index 662c0f4..c525efd 100644

--- a/src/daemon/DaemonApp.cpp

+++ b/src/daemon/DaemonApp.cpp

@@ -31,6 +31,7 @@

 #include <QDebug>

 #include <QHostInfo>

 #include <QTimer>

+#include <QFile>

 #include <iostream>

@@ -46,6 +47,16 @@ namespace SDDM {

         // log message

         qDebug() << "Initializing...";

+        // Write PID File

+        if ( ! QString(QStringLiteral(PID_FILE)).isEmpty() ) {

+            QFile pidFile(QStringLiteral(PID_FILE));

+            QString pid = QString::number(QCoreApplication::applicationPid());

+            if ( pidFile.open(QIODevice::WriteOnly | QIODevice::Text) ) {

+                pidFile.write(pid.toLatin1().data(), qstrlen(pid.toLatin1().data()));

+                pidFile.close();

+            }

+        }

+

         // set testing parameter

         m_testing = (arguments().indexOf("--test-mode") != -1);