diff --git a/qtinterface/tqt.h.cmake b/qtinterface/tqt.h.cmake
index 14d1ae5..cb5f293 100644
--- a/qtinterface/tqt.h.cmake
+++ b/qtinterface/tqt.h.cmake
@@ -993,9 +993,12 @@ Boston, MA 02110-1301, USA.
 #define tqInstallMsgHandler	qInstallMsgHandler
 
 
+#ifndef TQT_REAL_TQT
 
 #define tqApp	qApp
 
+#endif
+