diff --git a/app/views/api/reservations/show.json.jbuilder b/app/views/api/reservations/show.json.jbuilder
index 652331eb7..1f36016a5 100644
--- a/app/views/api/reservations/show.json.jbuilder
+++ b/app/views/api/reservations/show.json.jbuilder
@@ -25,10 +25,13 @@ json.reservable do
   json.name @reservation.reservable.name
 end
 json.nb_reserve_places @reservation.nb_reserve_places
-json.tickets reservation.tickets do |t|
+json.tickets @reservation.tickets do |t|
   json.extract! t, :booked, :created_at
-  json.price_category do
-    json.extract! t.event_price_category.price_category, :id, :name
+  json.event_price_category do
+    json.extract! t.event_price_category, :id, :price_category_id
+    json.price_category do
+      json.extract! t.event_price_category.price_category, :id, :name
+    end
   end
 end
 json.created_at @reservation.created_at.iso8601