diff --git a/qtservice/src/qtservice_unix.cpp b/qtservice/src/qtservice_unix.cpp
index 40d75c1..1e99889 100644
--- a/qtservice/src/qtservice_unix.cpp
+++ b/qtservice/src/qtservice_unix.cpp
@@ -281,7 +281,11 @@ public:
     QtServiceBase::ServiceFlags serviceFlags;
 
 protected:
+#if QT_VERSION >= QT_VERSION_CHECK(5,0,0)
+    void incomingConnection(qintptr socketDescriptor);
+#else
     void incomingConnection(int socketDescriptor);
+#endif
 
 private slots:
     void slotReady();
@@ -303,13 +307,26 @@ QtServiceSysPrivate::~QtServiceSysPrivate()
 	delete[] ident;
 }
 
+template<typename T>
+inline void incomingConnection(T socketDescriptor, QtServiceSysPrivate *service)
+{
+	QTcpSocket *s = new QTcpSocket(service);
+	s->setSocketDescriptor(socketDescriptor);
+	QObject::connect(s, SIGNAL(readyRead()), service, SLOT(slotReady()));
+	QObject::connect(s, SIGNAL(disconnected()), service, SLOT(slotClosed()));
+}
+
+#if QT_VERSION >= QT_VERSION_CHECK(5,0,0)
+void QtServiceSysPrivate::incomingConnection(qintptr socketDescriptor)
+{
+	::incomingConnection(socketDescriptor, this);
+}
+#else
 void QtServiceSysPrivate::incomingConnection(int socketDescriptor)
 {
-    QTcpSocket *s = new QTcpSocket(this);
-    s->setSocketDescriptor(socketDescriptor);
-    connect(s, SIGNAL(readyRead()), this, SLOT(slotReady()));
-    connect(s, SIGNAL(disconnected()), this, SLOT(slotClosed()));
+	::incomingConnection(socketDescriptor, this);
 }
+#endif
 
 void QtServiceSysPrivate::slotReady()
 {