Parsing RSS feed in Go

I am trying to write a podcast downloader in Go. The following code parses an RSS feed but the link of the channel is empty when printing the parsed data to the standard output. I don't know why. Any suggestions? I am new to Go.

package mainimport ("encoding/xml""fmt""net/http")type Enclosure struct {    Url    string `xml:"url,attr"`    Length int64  `xml:"length,attr"`    Type   string `xml:"type,attr"`}type Item struct {    Title     string    `xml:"title"`    Link      string    `xml:"link"`    Desc      string    `xml:"description"`    Guid      string    `xml:"guid"`    Enclosure Enclosure `xml:"enclosure"`    PubDate   string    `xml:"pubDate"`}type Channel struct {    Title string `xml:"title"`    Link  string `xml:"link"`    Desc  string `xml:"description"`    Items []Item `xml:"item"`}type Rss struct {    Channel Channel `xml:"channel"`}func main() {    resp, err := http.Get("http://www.bbc.co.uk/programmes/p02nrvz8/episodes/downloads.rss")    if err != nil {        fmt.Printf("Error GET: %v\n", err)        return    }    defer resp.Body.Close()    rss := Rss{}    decoder := xml.NewDecoder(resp.Body)    err = decoder.Decode(&rss)    if err != nil {        fmt.Printf("Error Decode: %v\n", err)        return    }    fmt.Printf("Channel title: %v\n", rss.Channel.Title)    fmt.Printf("Channel link: %v\n", rss.Channel.Link)    for i, item := range rss.Channel.Items {        fmt.Printf("%v. item title: %v\n", i, item.Title)    }}