diff --git a/all.pro b/all.pro
index d0be7a8..fec234c 100644
--- a/all.pro
+++ b/all.pro
@@ -7,7 +7,7 @@ unix:DEFINES += HAVE_READLINE
 win32: LIBUSB_PATH = "C:\Progra~1\LibUSB-Win32"
 
 ###############################################################################
-DEFINES      += NO_KDE QT_NO_ASCII_CAST
+DEFINES      += NO_KDE TQT_NO_ASCII_CAST
 OBJECTS_DIR   = .libs
 MOC_DIR       = .libs
 QT            = qt3support core xml network