diff --git a/server/qtservice/qtservice_unix.cpp b/server/qtservice/qtservice_unix.cpp
index c7632f3d..b95f681c 100644
--- a/server/qtservice/qtservice_unix.cpp
+++ b/server/qtservice/qtservice_unix.cpp
@@ -282,7 +282,7 @@ public:
     QtServiceBase::ServiceFlags serviceFlags;
 
 protected:
-    void incomingConnection(int socketDescriptor);
+    void incomingConnection(qintptr socketDescriptor) override;
 
 private slots:
     void slotReady();
@@ -304,7 +304,7 @@ QtServiceSysPrivate::~QtServiceSysPrivate()
 	delete[] ident;
 }
 
-void QtServiceSysPrivate::incomingConnection(int socketDescriptor)
+void QtServiceSysPrivate::incomingConnection(qintptr socketDescriptor)
 {
     QTcpSocket *s = new QTcpSocket(this);
     s->setSocketDescriptor(socketDescriptor);