diff --git a/qtmcop/qiomanager.cc b/qtmcop/qiomanager.cc
index a6990cf..1853586 100644
--- a/qtmcop/qiomanager.cc
+++ b/qtmcop/qiomanager.cc
@@ -22,8 +22,8 @@
 
 #include "qiomanager.h"
 #include "qiomanager_p.h"
-#include <qsocketnotifier.h>
-#include <qapplication.h>
+#include <tqsocketnotifier.h>
+#include <tqapplication.h>
 #include "debug.h"
 #include "dispatcher.h"
 #include "thread.h"
@@ -66,11 +66,11 @@ static bool qioBlocking;
  * QIOWatch:
  */
 QIOWatch::QIOWatch(int fd, int type, IONotify *notify,
-	QSocketNotifier::Type qtype, bool reentrant)
+	TQSocketNotifier::Type qtype, bool reentrant)
 	: _fd(fd), _type(type), _client(notify), _reentrant(reentrant)
 {
-	qsocketnotify = new QSocketNotifier(fd,qtype,this);
-	connect(qsocketnotify,SIGNAL(activated(int)),this,SLOT(notify(int)));
+	qsocketnotify = new TQSocketNotifier(fd,qtype,this);
+	connect(qsocketnotify,TQT_SIGNAL(activated(int)),this,TQT_SLOT(notify(int)));
 }
 
 void QIOWatch::notify(int socket)
@@ -84,8 +84,8 @@ void QIOWatch::notify(int socket)
  */
 QTimeWatch::QTimeWatch(int milliseconds, TimeNotify *notify)
 {
-	timer = new QTimer(this);
-	connect( timer, SIGNAL(timeout()), this, SLOT(notify()) );
+	timer = new TQTimer(this);
+	connect( timer, TQT_SIGNAL(timeout()), this, TQT_SLOT(notify()) );
 	timer->start(milliseconds);
 	_client = notify;
 }
@@ -179,19 +179,19 @@ void QIOManager::watchFD(int fd, int types, IONotify *notify)
 	if(types & IOType::read)
 	{
 		fdList.push_back(
-			new QIOWatch(fd, IOType::read, notify, QSocketNotifier::Read, r)
+			new QIOWatch(fd, IOType::read, notify, TQSocketNotifier::Read, r)
 		);
 	}
 	if(types & IOType::write)
 	{
 		fdList.push_back(
-			new QIOWatch(fd, IOType::write, notify, QSocketNotifier::Write, r)
+			new QIOWatch(fd, IOType::write, notify, TQSocketNotifier::Write, r)
 		);
 	}
 	if(types & IOType::except)
 	{
 		fdList.push_back(
-			new QIOWatch(fd, IOType::except, notify, QSocketNotifier::Exception,
+			new QIOWatch(fd, IOType::except, notify, TQSocketNotifier::Exception,
 						 r)
 		);
 	}
diff --git a/qtmcop/qiomanager.h b/qtmcop/qiomanager.h
index 3eafe51..a1a8b20 100644
--- a/qtmcop/qiomanager.h
+++ b/qtmcop/qiomanager.h
@@ -30,9 +30,9 @@
 #define QIOMANAGER_H
 
 #include "iomanager.h"
-#include <qobject.h>
-#include <qtimer.h>
-#include <qsocketnotifier.h>
+#include <tqobject.h>
+#include <tqtimer.h>
+#include <tqsocketnotifier.h>
 #include <list>
 #include "arts_export.h"
 
diff --git a/qtmcop/qiomanager_p.h b/qtmcop/qiomanager_p.h
index 8877b19..b4fea29 100644
--- a/qtmcop/qiomanager_p.h
+++ b/qtmcop/qiomanager_p.h
@@ -31,24 +31,24 @@
 #define QIOMANAGER_P_H
 
 #include "iomanager.h"
-#include <qobject.h>
-#include <qtimer.h>
-#include <qsocketnotifier.h>
+#include <tqobject.h>
+#include <tqtimer.h>
+#include <tqsocketnotifier.h>
 #include <list>
 
 namespace Arts {
 
-class QIOWatch : public QObject {
+class QIOWatch : public TQObject {
 	Q_OBJECT
 protected:
-	QSocketNotifier *qsocketnotify;
+	TQSocketNotifier *qsocketnotify;
 	int _fd;
 	int _type;
 	IONotify *_client;
 	bool _reentrant;
 
 public:
-	QIOWatch(int fd, int type, IONotify *notify, QSocketNotifier::Type qtype,
+	QIOWatch(int fd, int type, IONotify *notify, TQSocketNotifier::Type qtype,
 				bool reentrant);
 
 	inline IONotify *client() { return _client; }
@@ -59,10 +59,10 @@ public slots:
 	void notify(int socket);
 };
 
-class QTimeWatch : public QObject {
+class QTimeWatch : public TQObject {
 	Q_OBJECT
 protected:
-	QTimer *timer;
+	TQTimer *timer;
 	TimeNotify *_client;
 public:
 	QTimeWatch(int milliseconds, TimeNotify *notify);