ipod displayed with an usb key icon

Using trusty, an ipod nano is displayed with an usb key icon, under precise it was displayed as a multimedia player instead

gvfs-mount output

"Drive(2): Apple iPod
  Type: GProxyDrive (GProxyVolumeMonitorUDisks2)
  ids:
   unix-device: '/dev/sdb'
  themed icons: [drive-removable-media-usb] [drive-removable-media] [drive-removable] [drive]
  symbolic themed icons: [drive-removable-media-usb-symbolic] [drive-removable-media-symbolic] [drive-removable-symbolic] [drive-symbolic] [drive-removable-media-usb] [drive-removable-media] [drive-removable] [drive]
  is_media_removable=1
  has_media=1
  is_media_check_automatic=1
  can_poll_for_media=0
  can_eject=1
  can_start=0
  can_stop=0
  start_stop_type=shutdown
  sort_key=01hotplug/1393584266419875"