diff --git a/apps/participation/api/serializers.py b/apps/participation/api/serializers.py
index 0858030..683826f 100644
--- a/apps/participation/api/serializers.py
+++ b/apps/participation/api/serializers.py
@@ -57,7 +57,7 @@ class TournamentSerializer(serializers.ModelSerializer):
 
     class Meta:
         model = Tournament
-        fields = ('name', 'date_start', 'date_end', 'place', 'max_teams', 'price', 'remote',
+        fields = ('id', 'pk', 'name', 'date_start', 'date_end', 'place', 'max_teams', 'price', 'remote',
                   'inscription_limit', 'solution_limit', 'solutions_draw', 'syntheses_first_phase_limit',
                   'solutions_available_second_phase', 'syntheses_second_phase_limit',
                   'description', 'organizers', 'final', 'participations',)