QtQuick and iOS Retina @2x images (Qt 5.2.1)

According to this blog post:
https://blog.qt.digia.com/blog/2013/04/25/retina-display-support-for-mac-os-ios-and-x11/

"...High-resolution content can be provided side-by-side with the originals. The “@2x” version will be loaded automatically when needed by the QML Image element..."

I have a QtQuick 2.1 project with two sets of images in my QRC resource file.
Example: image.png and image@2x.png

Image {
      source: "image.png"
}

Qt always selects the Low-resolution image (image.png), no matter if I'm on a retina device or not.
Note: The image files are stored in a QRC resource file.