diff --git a/db/Gemfile.lock b/db/Gemfile.lock
index 88080fb81..62739af59 100644
--- a/db/Gemfile.lock
+++ b/db/Gemfile.lock
@@ -16,6 +16,3 @@ PLATFORMS
 
 DEPENDENCIES
   pg_migrate (= 0.1.13)!
-
-BUNDLED WITH
-   1.10.5
diff --git a/web/app/controllers/api_jam_tracks_controller.rb b/web/app/controllers/api_jam_tracks_controller.rb
index a5e1c4617..edd11cff2 100644
--- a/web/app/controllers/api_jam_tracks_controller.rb
+++ b/web/app/controllers/api_jam_tracks_controller.rb
@@ -104,7 +104,8 @@ class ApiJamTracksController < ApiController
         head :ok, checksum: checksum
         return
       else
-        # if the requested jamtrack is not purchased, send status code 204
+        # 204: nothing purchased for user
+        # 200: jamtrack purchase for user confirmed
         if JamTrackRight
             .where(jam_track_id: jtid, user_id: current_user.id)
             .limit(1)