diff --git a/db/up/music_session_constraints.sql b/db/up/music_session_constraints.sql
index 72f2bccd4..f070bc571 100644
--- a/db/up/music_session_constraints.sql
+++ b/db/up/music_session_constraints.sql
@@ -6,4 +6,4 @@ ON UPDATE NO ACTION ON DELETE CASCADE;
 alter table music_sessions_likers drop constraint music_sessions_likers_music_session_id_fkey;
 alter table music_sessions_likers add constraint ms_likers_ms_history_fkey foreign key (music_session_id)
 references music_sessions_history(music_session_id) match simple
-ON UPDATE NO ACTION ON DELETE CASCADE;
+ON UPDATE NO ACTION ON DELETE CASCADE;
\ No newline at end of file
diff --git a/ruby/lib/jam_ruby/models/music_session_user_history.rb b/ruby/lib/jam_ruby/models/music_session_user_history.rb
index 5a8e43f8d..5939f8bff 100644
--- a/ruby/lib/jam_ruby/models/music_session_user_history.rb
+++ b/ruby/lib/jam_ruby/models/music_session_user_history.rb
@@ -35,7 +35,7 @@ module JamRuby
       session_user_history.music_session_id = music_session_id
       session_user_history.user_id = user_id
       session_user_history.client_id = client_id
-      session_user_history.instruments = tracks.map {|t| t.instrument_id}.join("|")
+      session_user_history.instruments = tracks.map {|t| t[:instrument_id]}.join("|")
       session_user_history.save
     end
     
diff --git a/web/config/environments/development.rb b/web/config/environments/development.rb
index 0fa697e0d..6aec3027a 100644
--- a/web/config/environments/development.rb
+++ b/web/config/environments/development.rb
@@ -48,7 +48,7 @@ SampleApp::Application.configure do
   config.assets.debug = false
 
   # Set the logging destination(s)
-  # config.log_to = %w[stdout file]
+  config.log_to = %w[stdout file]
 
   # Show the logging configuration on STDOUT
   config.show_log_configuration = true