diff --git a/api/v1/serializers/config.py b/api/v1/serializers/config.py
index 92f8aa64..ef7b3f1a 100644
--- a/api/v1/serializers/config.py
+++ b/api/v1/serializers/config.py
@@ -15,9 +15,8 @@ def _set_constance_value(key, value):
 class ConfigSerializer(serializers.Serializer):
     INSTAGRAM_CLIENT_ACCESS_TOKEN = serializers.CharField(required=False)
     INSTAGRAM_CLIENT_SECRET = serializers.CharField(required=False)
-    INSTAGRAM_RESULTS_TAG = serializers.CharField(required=False)
-    INSTAGRAM_RESULTS_PATH = serializers.CharField(required=False)
     SERVICE_COMMISSION = serializers.IntegerField(required=False)
+    SERVICE_DISCOUNT = serializers.IntegerField(required=False)
 
     def to_representation(self, instance):
         ret = OrderedDict()
diff --git a/project/settings.py b/project/settings.py
index c9b37278..fd6497d1 100644
--- a/project/settings.py
+++ b/project/settings.py
@@ -232,7 +232,8 @@ CONSTANCE_CONFIG = OrderedDict((
     ('INSTAGRAM_CLIENT_SECRET', ('2334a921425140ccb180d145dcd35b25', '')),
     ('INSTAGRAM_RESULTS_TAG', ('#lil_акварель', 'Тэг результатов работ.')),
     ('INSTAGRAM_RESULTS_PATH', ('media/instagram/results/', 'Путь до результатов работ.')),
-    ('SERVICE_COMMISSION', (10, 'Комиссия сервиса в процентах.'))
+    ('SERVICE_COMMISSION', (10, 'Комиссия сервиса в процентах.')),
+    ('SERVICE_DISCOUNT', (1000, 'Комиссия сервиса при покупке всех дней.')),
 ))
 
 try: