diff --git a/internal/backends/jspf/jspf.go b/internal/backends/jspf/jspf.go
index 3e6866d..f98349a 100644
--- a/internal/backends/jspf/jspf.go
+++ b/internal/backends/jspf/jspf.go
@@ -150,6 +150,7 @@ func trackAsTrack(t models.Track) jspf.Track {
 		Album:     t.ReleaseName,
 		Creator:   t.ArtistName(),
 		TrackNum:  t.TrackNumber,
+		Duration:  t.Duration.Milliseconds(),
 		Extension: map[string]any{},
 	}
 
diff --git a/pkg/jspf/models.go b/pkg/jspf/models.go
index d910367..d7a540c 100644
--- a/pkg/jspf/models.go
+++ b/pkg/jspf/models.go
@@ -57,7 +57,7 @@ type Track struct {
 	Info       string         `json:"info,omitempty"`
 	Album      string         `json:"album,omitempty"`
 	TrackNum   int            `json:"trackNum,omitempty"`
-	Duration   int            `json:"duration,omitempty"`
+	Duration   int64          `json:"duration,omitempty"`
 	Links      []Link         `json:"link,omitempty"`
 	Meta       []Meta         `json:"meta,omitempty"`
 	Extension  map[string]any `json:"extension,omitempty"`