diff --git a/ruby/lib/jam_ruby/models/recording.rb b/ruby/lib/jam_ruby/models/recording.rb
index 2863dc34d..ca1c241ef 100644
--- a/ruby/lib/jam_ruby/models/recording.rb
+++ b/ruby/lib/jam_ruby/models/recording.rb
@@ -326,7 +326,7 @@ module JamRuby
               }
           )
       end
-      latest_recorded_track = (downloads.length > 0) ? downloads[-1][:next] : nil
+      latest_recorded_track = (downloads.length > 0) ? downloads[-1][:next] : 0
 
       Mix.joins(:recording).joins(:recording => :claimed_recordings)
       .order('mixes.id')
@@ -349,7 +349,7 @@ module JamRuby
             }
         )
       end
-      latest_mix = (downloads.length > 0) ? downloads[-1][:next] : nil
+      latest_mix = (downloads.length > 0) ? downloads[-1][:next] : 0
 
       RecordedBackingTrack.joins(:recording).joins(:recording => :claimed_recordings)
       .order('recorded_backing_tracks.id')
@@ -370,7 +370,7 @@ module JamRuby
               }
           )
       end
-      latest_recorded_backing_track = (downloads.length > 0) ? downloads[-1][:next] : nil
+      latest_recorded_backing_track = (downloads.length > 0) ? downloads[-1][:next] : 0
 
       next_date = [latest_mix, latest_recorded_track, latest_recorded_backing_track].max