diff --git a/nettool/api/tcpserver.cpp b/nettool/api/tcpserver.cpp
index 1eb3aac..a526995 100644
--- a/nettool/api/tcpserver.cpp
+++ b/nettool/api/tcpserver.cpp
@@ -80,7 +80,11 @@ TcpServer::TcpServer(QObject *parent) : QTcpServer(parent)
 {
 }
 
+#if (QT_VERSION > QT_VERSION_CHECK(5,0,0))
+void TcpServer::incomingConnection(qintptr handle)
+#else
 void TcpServer::incomingConnection(int handle)
+#endif
 {
     TcpClient *client = new TcpClient(this);
     client->setSocketDescriptor(handle);
diff --git a/nettool/api/tcpserver.h b/nettool/api/tcpserver.h
index b650b6d..0c5327d 100644
--- a/nettool/api/tcpserver.h
+++ b/nettool/api/tcpserver.h
@@ -42,7 +42,11 @@ private:
     QList<TcpClient *> clients;
 
 protected:
+#if (QT_VERSION > QT_VERSION_CHECK(5,0,0))
+    void incomingConnection(qintptr handle);
+#else
     void incomingConnection(int handle);
+#endif
 
 private slots:
     void disconnected();