diff --git a/sip/tqt/tqapplication.sip b/sip/tqt/tqapplication.sip
index 8875566..e0d88dc 100644
--- a/sip/tqt/tqapplication.sip
+++ b/sip/tqt/tqapplication.sip
@@ -419,12 +419,12 @@ enum TQtMsgType {
 };
 
 
-SIP_PYCALLABLE tqInstallMsgHandler(SIP_PYCALLABLE /AllowNone/);
+SIP_PYCALLABLE qInstallMsgHandler(SIP_PYCALLABLE /AllowNone/);
 %MethodCode
 	void (*old)(TQtMsgType, const char *);
 
 	// Treat None as the default handler.
-	old = tqInstallMsgHandler((a0 != Py_None) ? pytqtMsgHandler : 0);
+	old = qInstallMsgHandler((a0 != Py_None) ? pytqtMsgHandler : 0);
 
 	// If we recognise the old handler, then return it.  Otherwise return
 	// the default handler.  This doesn't exactly mimic the TQt behaviour