diff --git a/src/svg/qsvggenerator.cpp b/src/svg/qsvggenerator.cpp
index cf69b7f..9fe5a13 100644
--- a/src/svg/qsvggenerator.cpp
+++ b/src/svg/qsvggenerator.cpp
@@ -255,17 +255,17 @@ public:
             if (!constantAlpha) {
                 const qreal spacing = qreal(0.02);
                 QGradientStops newStops;
-                QRgb fromColor = PREMUL(stops.at(0).second.rgba());
+                QRgb fromColor = qPremultiply(stops.at(0).second.rgba());
                 QRgb toColor;
                 for (int i = 0; i + 1 < stops.size(); ++i) {
                     int parts = qCeil((stops.at(i + 1).first - stops.at(i).first) / spacing);
                     newStops.append(stops.at(i));
-                    toColor = PREMUL(stops.at(i + 1).second.rgba());
+                    toColor = qPremultiply(stops.at(i + 1).second.rgba());
 
                     if (parts > 1) {
                         qreal step = (stops.at(i + 1).first - stops.at(i).first) / parts;
                         for (int j = 1; j < parts; ++j) {
-                            QRgb color = INV_PREMUL(INTERPOLATE_PIXEL_256(fromColor, 256 - 256 * j / parts, toColor, 256 * j / parts));
+                            QRgb color = qUnpremultiply(INTERPOLATE_PIXEL_256(fromColor, 256 - 256 * j / parts, toColor, 256 * j / parts));
                             newStops.append(QGradientStop(stops.at(i).first + j * step, QColor::fromRgba(color)));
                         }
                     }