diff --git a/src/gameboard.cpp b/src/gameboard.cpp
index 3caac7b..c5a9d1f 100644
--- a/src/gameboard.cpp
+++ b/src/gameboard.cpp
@@ -108,7 +108,7 @@ GameBoard::redrawMap()
 	p = new TQPainter(xpm);
 	fnt = p->font();
 	fnt.setPointSize(dy * 4 / 11);
-	fnt.setItalic(TRUE);
+	fnt.setItalic(true);
 	p->setFont(fnt);
 	p->setBrush(TQBrush(paperColor));
 	p->setPen(TQt::black);
@@ -136,7 +136,7 @@ GameBoard::redrawMap()
 	}
 	if (kpos < 0) {
 		fnt.setPointSize(dy * 3 / 5);
-		fnt.setBold(TRUE);
+		fnt.setBold(true);
 		p->setFont(fnt);
 		p->setPen(TQColor(0, 0xB3, 0));
 		p->drawText(0, 0, w, h, TQt::AlignCenter,
@@ -147,7 +147,7 @@ GameBoard::redrawMap()
 
 		if (vmove.size() == 0) {
 			/* game over */
-			setEnabled(FALSE);
+			setEnabled(false);
 			y = y * dy + 1;
 			x = x * dx + 1;
 			p->setBrush(TQBrush(TQt::red));
@@ -172,7 +172,7 @@ GameBoard::redrawMap()
 			}
 		} else {
 			fnt.setPointSize(dy * 3 / 5);
-			fnt.setBold(TRUE);
+			fnt.setBold(true);
 			p->setFont(fnt);
 			p->setPen(TQColor(0, 0xB3, 0));
 			size = map_size * map_size;
@@ -364,7 +364,7 @@ void
 GameBoard::newGame(int size)
 {
 
-	setEnabled(TRUE);
+	setEnabled(true);
 	if (xpm != nullptr) {
 		xpm->fill(paperColor);
 		update();
diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index d915094..1327864 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -32,7 +32,7 @@ MainWindow::MainWindow(TQWidget* parent, const char* name)
 	menuBar()->insertItem(i18n("Knight's tour"), mMenu);
 
 	mGame = new TDEPopupMenu(this);
-	mGame->setCheckable(TRUE);
+	mGame->setCheckable(true);
 	idTip = mGame->insertItem(i18n("&Highlight tips"),
 		this, TQ_SLOT(toggleTips()));
 	idKnight = mGame->insertItem(i18n("&Show the knight"),
@@ -85,15 +85,15 @@ MainWindow::loadSettings()
 		break;
 	}
 
-	val = settings->readBoolEntry("/KnightTour/Tip", TRUE);
+	val = settings->readBoolEntry("/KnightTour/Tip", true);
 	mGame->setItemChecked(idTip, !val);
 	toggleTips();
 
-	val = settings->readBoolEntry("/KnightTour/Visibility", TRUE);
+	val = settings->readBoolEntry("/KnightTour/Visibility", true);
 	mGame->setItemChecked(idKnight, !val);
 	toggleKnight();
 
-	val = settings->readBoolEntry("/KnightTour/RandomCell", TRUE);
+	val = settings->readBoolEntry("/KnightTour/RandomCell", true);
 	mGame->setItemChecked(idCell, !val);
 	randomCell();
 }
@@ -129,7 +129,7 @@ MainWindow::newGame()
 	TQCheckBox	*rnd;
 	TQButton	*ok, *cancel;
 
-	dlg = new TQDialog(this, nullptr, TRUE);
+	dlg = new TQDialog(this, nullptr, true);
 	dlg->setCaption(i18n("Board size"));
 
 	vbox = new TQVBoxLayout(dlg);