diff --git a/src/map/IMG/rastertile.cpp b/src/map/IMG/rastertile.cpp
index 81ef1e26..81c0608b 100644
--- a/src/map/IMG/rastertile.cpp
+++ b/src/map/IMG/rastertile.cpp
@@ -160,12 +160,13 @@ void RasterTile::render()
 	processPolygons(textItems);
 	processLines(textItems);
 
+	_pixmap.setDevicePixelRatio(_ratio);
 	_pixmap.fill(Qt::transparent);
 
 	QPainter painter(&_pixmap);
 	painter.setRenderHint(QPainter::SmoothPixmapTransform);
 	painter.setRenderHint(QPainter::Antialiasing);
-	painter.translate(-_xy.x(), -_xy.y());
+	painter.translate(-_rect.x(), -_rect.y());
 
 	drawPolygons(&painter);
 	drawLines(&painter);
@@ -294,7 +295,6 @@ static void removeDuplicitLabel(QList<TextItem *> &labels, const QString &text,
 
 void RasterTile::processPolygons(QList<TextItem*> &textItems)
 {
-	QRectF tileRect(_xy, _pixmap.size());
 	QSet<QString> set;
 	QList<TextItem *> labels;
 
@@ -314,10 +314,10 @@ void RasterTile::processPolygons(QList<TextItem*> &textItems)
 			  0, &style.brush().color(), &haloColor);
 			if (item->isValid() && !item->collides(textItems)
 			  && !item->collides(labels)
-			  && !(exists && tileRect.contains(item->boundingRect()))
+			  && !(exists && _rect.contains(item->boundingRect().toRect()))
 			  && rectNearPolygon(poly.points, item->boundingRect())) {
 				if (exists)
-					removeDuplicitLabel(labels, poly.label.text(), tileRect);
+					removeDuplicitLabel(labels, poly.label.text(), _rect);
 				else
 					set.insert(poly.label.text());
 				labels.append(item);
@@ -331,17 +331,14 @@ void RasterTile::processPolygons(QList<TextItem*> &textItems)
 
 void RasterTile::processLines(QList<TextItem*> &textItems)
 {
-	QRect tileRect(_xy, _pixmap.size());
-
 	std::stable_sort(_lines.begin(), _lines.end());
 
 	if (_zoom >= 22)
-		processStreetNames(tileRect, textItems);
-	processShields(tileRect, textItems);
+		processStreetNames(textItems);
+	processShields(textItems);
 }
 
-void RasterTile::processStreetNames(const QRect &tileRect,
-  QList<TextItem*> &textItems)
+void RasterTile::processStreetNames(QList<TextItem*> &textItems)
 {
 	for (int i = 0; i < _lines.size(); i++) {
 		MapData::Poly &poly = _lines[i];
@@ -358,7 +355,7 @@ void RasterTile::processStreetNames(const QRect &tileRect,
 		  ? &style.textColor() : 0;
 
 		TextPathItem *item = new TextPathItem(poly.points,
-		  &poly.label.text(), tileRect, fnt, color);
+		  &poly.label.text(), _rect, fnt, color);
 		if (item->isValid() && !item->collides(textItems))
 			textItems.append(item);
 		else
@@ -366,8 +363,7 @@ void RasterTile::processStreetNames(const QRect &tileRect,
 	}
 }
 
-void RasterTile::processShields(const QRect &tileRect,
-  QList<TextItem*> &textItems)
+void RasterTile::processShields(QList<TextItem*> &textItems)
 {
 	for (int type = FIRST_SHIELD; type <= LAST_SHIELD; type++) {
 		if (minShieldZoom(static_cast<Shield::Type>(type)) > _zoom)
@@ -393,7 +389,7 @@ void RasterTile::processShields(const QRect &tileRect,
 		for (QHash<Shield, QPolygonF>::const_iterator it = shields.constBegin();
 		  it != shields.constEnd(); ++it) {
 			const QPolygonF &p = it.value();
-			QRectF rect(p.boundingRect() & tileRect);
+			QRectF rect(p.boundingRect() & _rect);
 			if (AREA(rect) < AREA(QRect(0, 0, _pixmap.width()/4, _pixmap.width()/4)))
 				continue;
 
@@ -413,7 +409,7 @@ void RasterTile::processShields(const QRect &tileRect,
 			bool valid = false;
 			while (true) {
 				if (!item->collides(textItems)
-				  && tileRect.contains(item->boundingRect().toRect())) {
+				  && _rect.contains(item->boundingRect().toRect())) {
 					valid = true;
 					break;
 				}
diff --git a/src/map/IMG/rastertile.h b/src/map/IMG/rastertile.h
index 7e0b0c6b..5aa169f8 100644
--- a/src/map/IMG/rastertile.h
+++ b/src/map/IMG/rastertile.h
@@ -16,14 +16,14 @@ class RasterTile
 {
 public:
 	RasterTile(IMGMap *map, const Style *style, int zoom, const QRect &rect,
-	  const QString &key, const QList<MapData::Poly> &polygons,
+	  qreal ratio, const QString &key, const QList<MapData::Poly> &polygons,
 	  const QList<MapData::Poly> &lines, QList<MapData::Point> &points)
-	  : _map(map), _style(style), _zoom(zoom), _xy(rect.topLeft()),
-	  _key(key), _pixmap(rect.size()), _polygons(polygons), _lines(lines),
-	  _points(points) {}
+	  : _map(map), _style(style), _zoom(zoom), _rect(rect), _ratio(ratio),
+	  _key(key), _pixmap(rect.width() * ratio, rect.height() * ratio),
+	  _polygons(polygons), _lines(lines), _points(points) {}
 
 	const QString &key() const {return _key;}
-	const QPoint &xy() const {return _xy;}
+	QPoint xy() const {return _rect.topLeft();}
 	const QPixmap &pixmap() const {return _pixmap;}
 
 	void render();
@@ -39,13 +39,14 @@ private:
 	void processPolygons(QList<TextItem *> &textItems);
 	void processLines(QList<TextItem*> &textItems);
 	void processPoints(QList<TextItem*> &textItems);
-	void processShields(const QRect &tileRect, QList<TextItem*> &textItems);
-	void processStreetNames(const QRect &tileRect, QList<TextItem*> &textItems);
+	void processShields(QList<TextItem*> &textItems);
+	void processStreetNames(QList<TextItem*> &textItems);
 
 	IMGMap *_map;
 	const Style *_style;
 	int _zoom;
-	QPoint _xy;
+	QRect _rect;
+	qreal _ratio;
 	QString _key;
 	QPixmap _pixmap;
 	QList<MapData::Poly> _polygons;
diff --git a/src/map/imgmap.cpp b/src/map/imgmap.cpp
index 35ffca2e..667d66c0 100644
--- a/src/map/imgmap.cpp
+++ b/src/map/imgmap.cpp
@@ -41,7 +41,8 @@ static QList<MapData*> overlays(const QString &fileName)
 }
 
 IMGMap::IMGMap(const QString &fileName, QObject *parent)
-  : Map(fileName, parent), _projection(PCS::pcs(3857)), _valid(false)
+  : Map(fileName, parent), _projection(PCS::pcs(3857)), _tileRatio(1.0),
+  _valid(false)
 {
 	if (GMAPData::isGMAP(fileName))
 		_data.append(new GMAPData(fileName));
@@ -182,8 +183,8 @@ void IMGMap::draw(QPainter *painter, const QRectF &rect, Flags flags)
 					  _zoom, &points);
 
 					tiles.append(RasterTile(this, _data.at(n)->style(), _zoom,
-					  QRect(ttl, QSize(TILE_SIZE, TILE_SIZE)), key, polygons,
-					  lines, points));
+					  QRect(ttl, QSize(TILE_SIZE, TILE_SIZE)), _tileRatio, key,
+					  polygons, lines, points));
 				}
 			}
 		}
@@ -200,6 +201,13 @@ void IMGMap::draw(QPainter *painter, const QRectF &rect, Flags flags)
 	}
 }
 
+void IMGMap::setDevicePixelRatio(qreal deviceRatio, qreal mapRatio)
+{
+	Q_UNUSED(mapRatio);
+
+	_tileRatio = deviceRatio;
+}
+
 void IMGMap::setOutputProjection(const Projection &projection)
 {
 	if (projection == _projection)
diff --git a/src/map/imgmap.h b/src/map/imgmap.h
index fb41140c..c1573580 100644
--- a/src/map/imgmap.h
+++ b/src/map/imgmap.h
@@ -34,6 +34,7 @@ public:
 	void draw(QPainter *painter, const QRectF &rect, Flags flags);
 
 	void setOutputProjection(const Projection &projection);
+	void setDevicePixelRatio(qreal deviceRatio, qreal mapRatio);
 
 	void load();
 	void unload();
@@ -53,6 +54,7 @@ private:
 	Transform _transform;
 	QRectF _bounds;
 	RectC _dataBounds;
+	qreal _tileRatio;
 
 	bool _valid;
 	QString _errorString;