diff --git a/app/dao/chat.py b/app/dao/chat.py
index cd24531..8f1d839 100644
--- a/app/dao/chat.py
+++ b/app/dao/chat.py
@@ -58,7 +58,7 @@ class ChatDAO(BaseDAO):
 			stmt = insert(UserChat).values(user_id=user_id, chat_id=chat_id)
 			await self.session.execute(stmt)
 		except IntegrityError:
-			raise UserAlreadyInChatException
+			pass
 
 	async def change_data(self, chat_id: int, chat_name: str, avatar_image: HttpUrl) -> None:
 		stmt = (
diff --git a/app/services/chat_service.py b/app/services/chat_service.py
index 5fc3b6b..11f8e6d 100644
--- a/app/services/chat_service.py
+++ b/app/services/chat_service.py
@@ -51,10 +51,7 @@ class ChatService:
 				avatar_image=user_chat_for.avatar_image
 			)
 			await uow.chat.add_user_to_chat(user_id, chat_id)
-			try:
-				await uow.chat.add_user_to_chat(settings.ADMIN_USER_ID, chat_id)
-			except UserAlreadyInChatException:
-				pass
+			await uow.chat.add_user_to_chat(settings.ADMIN_USER_ID, chat_id)
 			async with RedisService(is_raise=True) as redis:
 				await redis.delete_key(key=f"user_allowed_chats: {user_id}")
 			await uow.commit()