diff --git a/beetsplug/discogs.py b/beetsplug/discogs.py
index cf10a2a36..905358024 100644
--- a/beetsplug/discogs.py
+++ b/beetsplug/discogs.py
@@ -314,7 +314,9 @@ class DiscogsPlugin(BeetsPlugin):
             # Only real tracks have `position`. Otherwise, it's an index track.
             if track['position']:
                 index += 1
-                tracks.append(self.get_track_info(track, index))
+                ti = self.get_track_info(track, index)
+                ti.alt_track_no = track['position']
+                tracks.append(ti)
             else:
                 index_tracks[index + 1] = track['title']