diff --git a/qtinterface/tqt.h.cmake b/qtinterface/tqt.h.cmake
index d3d121f..d105d44 100644
--- a/qtinterface/tqt.h.cmake
+++ b/qtinterface/tqt.h.cmake
@@ -51,15 +51,6 @@ Boston, MA 02110-1301, USA.
 
 #define Qt TQt
 
-#define tqqt_cast		tqt_cast
-
-#define TQAlignCenter AlignCenter
-#define TQNoBrush NoBrush
-
-#define IID_TQUnknown IID_QUnknown
-#define IID_TQComponentInformation IID_QComponentInformation
-#define IID_TQWidgetFactory IID_QWidgetFactory
-
 #define tqmoc	moc
 #define TQMOC	MOC