diff --git a/mopidy_subidy/subsonic_api.py b/mopidy_subidy/subsonic_api.py
index b480d4e..2d56449 100644
--- a/mopidy_subidy/subsonic_api.py
+++ b/mopidy_subidy/subsonic_api.py
@@ -32,7 +32,7 @@ def diritem_sort_key(item):
     if isdir:
         key = string_nums_nocase_sort_key(item['title'])
     else:
-        key = int(item['track'])
+        key = int(item.get('track', 1))
     return (isdir, key)
 
 class SubsonicApi():