diff --git a/qad_graphic/graphic.cpp b/qad_graphic/graphic.cpp
index 77b98ee..2322e83 100644
--- a/qad_graphic/graphic.cpp
+++ b/qad_graphic/graphic.cpp
@@ -192,7 +192,7 @@ void Graphic::canvasPaintEvent(QPaintEvent * ) {
 	lasth = hei;
 	font_sz = fontMetrics().size(0, "0");
 	font_sz.setHeight(font_sz.height() * 1.);
-	font_sz.setWidth(font_sz.width() * 7);
+	font_sz.setWidth(font_sz.width() * 8);
 	thick = qMax<int>(qRound(font_sz.height() / 15.), 1);
 	if (buffer != 0) if (buffer->width() != wid || buffer->height() != hei) {delete buffer; buffer = 0;}
 	if (buffer == 0) buffer = new QImage(wid, hei, QImage::Format_RGB32);
@@ -854,7 +854,7 @@ void Graphic::drawGrid() {
 	cx = gbx - 5;
 	grid_pen.setWidth(qMax<int>(qRound(thick / 1.4), 1));
 	QFont nf = font(), sf = font();
-	sf.setPointSizeF(sf.pointSizeF() / 1.6);
+	sf.setPointSizeF(qMax<qreal>(sf.pointSizeF() / 1.6, 7.));
 	QFontMetrics fm(nf), sfm(sf);
 	if (step > 0.) {
 		cnt = 1000;