diff --git a/plasma/framesvg.cpp b/plasma/framesvg.cpp
index 4fe77a02..fb78638a 100644
--- a/plasma/framesvg.cpp
+++ b/plasma/framesvg.cpp
@@ -462,9 +462,7 @@ QRegion FrameSvg::mask() const
         if (frame->cachedMasks.count() > frame->MAX_CACHED_MASKS) {
             frame->cachedMasks.clear();
         }
-
-        const QPixmap pixmap = d->alphaMask();
-        frame->cachedMasks.insert(id, QRegion(pixmap.createMaskFromColor(Qt::black)));
+        frame->cachedMasks.insert(id, QRegion(QBitmap(d->alphaMask().alphaChannel().createMaskFromColor(Qt::black))));
     }
     return frame->cachedMasks[id];
 }