diff --git a/qad/blockview/blockview.cpp b/qad/blockview/blockview.cpp
index 17b2fb9..c7b66e7 100644
--- a/qad/blockview/blockview.cpp
+++ b/qad/blockview/blockview.cpp
@@ -604,10 +604,12 @@ void BlockView::wheelEvent(QWheelEvent * e) {
 		if (!is_nav_anim || (nav_anim.state() != QPropertyAnimation::Running))
 			nav_target = _nav();
 		QRectF r = nav_target;
-		double cx = double(e->pos().x()) / viewport()->width(), cy = double(e->pos().y()) / viewport()->height();
+		double vw = viewport()->width(), vh = viewport()->height();
+		double cx = double(e->pos().x()) / vw, cy = double(e->pos().y()) / vh;
 		double pw = r.width(), ph = r.height();
 		r.setWidth(r.width() * scl);
-		r.setHeight(r.height() * scl);
+		//r.setHeight(r.height() * scl);
+		r.setHeight(r.width() * vh / vw);
 		r.translate(cx * (pw - r.width()), cy * (ph - r.height()));
 		animateNav(r);
 		return;