diff --git a/src/frontends/qt4/GuiPainter.cpp b/src/frontends/qt4/GuiPainter.cpp
index 986ac4672a..0071581a63 100644
--- a/src/frontends/qt4/GuiPainter.cpp
+++ b/src/frontends/qt4/GuiPainter.cpp
@@ -371,7 +371,7 @@ int GuiPainter::text(int x, int y, docstring const & s,
 		int const h = mA + mD;
 		if (w > 0 && h > 0) {
 			pm = QPixmap(pixelRatio() * w , pixelRatio() * h);
-#if QT_VERSION > 0x050000
+#if QT_VERSION >= 0x050000
 			pm.setDevicePixelRatio(pixelRatio());
 #endif
 			pm.fill(Qt::transparent);
diff --git a/src/frontends/qt4/GuiWorkArea_Private.h b/src/frontends/qt4/GuiWorkArea_Private.h
index 0915b64d4c..cdf054bc91 100644
--- a/src/frontends/qt4/GuiWorkArea_Private.h
+++ b/src/frontends/qt4/GuiWorkArea_Private.h
@@ -128,14 +128,14 @@ struct GuiWorkArea::Private
 		if (lyxrc.use_qimage) {
 			QImage *x = new QImage(pixel_ratio_ * p->viewport()->width(),
 				pixel_ratio_ * p->viewport()->height(), QImage::Format_ARGB32_Premultiplied);
-#if QT_VERSION > 0x050000
+#if QT_VERSION >= 0x050000
 			x->setDevicePixelRatio(pixel_ratio_);
 #endif
 			screen_ = x;
 		} else {
 			QPixmap *x = new QPixmap(pixel_ratio_ * p->viewport()->width(),
 				pixel_ratio_ * p->viewport()->height());
-#if QT_VERSION > 0x050000
+#if QT_VERSION >= 0x050000
 			x->setDevicePixelRatio(pixel_ratio_);
 #endif
 			screen_ = x;