diff --git a/app/views/api_music_sessions/show.rabl b/app/views/api_music_sessions/show.rabl
index 8ebe0dab0..b2dff9e34 100644
--- a/app/views/api_music_sessions/show.rabl
+++ b/app/views/api_music_sessions/show.rabl
@@ -3,7 +3,7 @@ object @music_session
 attributes :id, :description, :musician_access 
 
 node :genres do |item|
-  item.genres.map(&:description)
+  item.genres.map(&:id)
 end
 
 child(:connections => :participants) {