diff --git a/daemons/notify.py b/daemons/notify.py
index 78c4e79..8bd4d05 100644
--- a/daemons/notify.py
+++ b/daemons/notify.py
@@ -59,7 +59,7 @@ def process():
             {"$set": {"next_daily_notify_time": user_model.next_daily_notify_time + datetime.timedelta(days=1)}}
         )
 
-    for user in mongo.users_collection.find({"first_lesson_notify": True, "hse_id": {"$ne": None}}):
+    for user in mongo.users_collection.find({"first_lesson_notify": {"$exists": True}, "first_lesson_notify": {"$ne": None}, "hse_id": {"$ne": None}}):
         time_now = now(UserSchema().load(user))
         for lesson in mongo.lessons_collection.find({
             "hse_user_id": user["hse_id"],