diff --git a/src/kqalculate.cpp b/src/kqalculate.cpp
index c48c350..57e328c 100644
--- a/src/kqalculate.cpp
+++ b/src/kqalculate.cpp
@@ -6569,7 +6569,7 @@ TQSize QalculateButton::sizeHint() const {
 	int w = 0, h = 0;
     
 
-#ifndef QT_NO_ICONSET
+#ifndef TQT_NO_ICONSET
 	if(iconSet() && !iconSet()->isNull()) {
 		w = iconSet()->pixmap( TQIconSet::Small, TQIconSet::Normal ).width() + 10;
 		h = iconSet()->pixmap( TQIconSet::Small, TQIconSet::Normal ).height() + 10;