diff --git a/spec/controllers/tournaments_controller_spec.rb b/spec/controllers/tournaments_controller_spec.rb
index 5941ecd..f6574ee 100644
--- a/spec/controllers/tournaments_controller_spec.rb
+++ b/spec/controllers/tournaments_controller_spec.rb
@@ -100,7 +100,11 @@ RSpec.describe TournamentsController, type: :controller do
 
     it 'returns the requested tournament' do
       get :show, params: { id: @tournament.to_param }
-      expect(deserialize_response(response)[:id].to_i).to eq(@tournament.id)
+      json = deserialize_response(response)
+      expect(json[:id].to_i).to eq(@tournament.id)
+      expected_keys = %i[id name code public description playoff_teams_amount instant_finalists_amount intermediate_round_participants_amount timer_end owner_username stages teams]
+      expect(json.keys).to match_array(expected_keys)
+      expect(json).to eq(TournamentSerializer.new(@tournament).as_json)
     end
 
     context 'with simple=true parameter' do