diff --git a/mongo.py b/mongo.py
index 6b9880e..619440f 100644
--- a/mongo.py
+++ b/mongo.py
@@ -30,7 +30,10 @@ class Mongo:
         return self["counter"]
 
     def inc(self, username, chat_id):
-        self.counter_collection.update_one({"chat_id": chat_id, "username": username}, {"$inc": {"count": 1}})
+        if self.counter_collection.find_one({"chat_id": chat_id, "username": username}):
+            self.counter_collection.update_one({"chat_id": chat_id, "username": username}, {"$inc": {"count": 1}})
+        else:
+            self.counter_collection.insert_one({"chat_id": chat_id, "username": username, "count": 1})
 
 
 mongo = Mongo()