diff --git a/combo/apps/notifications/api_views.py b/combo/apps/notifications/api_views.py
index 5dce74c1..80a4384f 100644
--- a/combo/apps/notifications/api_views.py
+++ b/combo/apps/notifications/api_views.py
@@ -30,7 +30,6 @@ class NotificationSerializer(serializers.Serializer):
     start_timestamp = serializers.DateTimeField(required=False, allow_null=True)
     end_timestamp = serializers.DateTimeField(required=False, allow_null=True)
     duration = serializers.IntegerField(required=False, allow_null=True, min_value=0)
-    acked = serializers.NullBooleanField(required=False)
 
 
 class Add(GenericAPIView):
@@ -54,7 +53,6 @@ class Add(GenericAPIView):
                 start_timestamp=data.get('start_timestamp'),
                 end_timestamp=data.get('end_timestamp'),
                 duration=data.get('duration'),
-                acked=data.get('acked'),
             )
         except ValueError as e:
             response = {'err': 1, 'err_desc': {'id': [unicode(e)]}}