diff --git a/docs/exchanges.md b/docs/exchanges.md
index bbed3cef0..54fd7eae3 100644
--- a/docs/exchanges.md
+++ b/docs/exchanges.md
@@ -258,7 +258,7 @@ The configuration parameter `exchange.unknown_fee_rate` can be used to specify t
 ## Bybit
 
 Futures trading on bybit is currently supported for USDT markets, and will use isolated futures mode.
-Users with unified accounts (there's no way back) can create a subaccount which will start as "non-unified", and can therefore use isolated futures.
+Users with unified accounts (there's no way back) can create a Sub-account which will start as "non-unified", and can therefore use isolated futures.
 
 As bybit doesn't provide funding rate history, the dry-run calculation is used for live trades as well.
 
diff --git a/freqtrade/exchange/bybit.py b/freqtrade/exchange/bybit.py
index a99f3656c..e08380213 100644
--- a/freqtrade/exchange/bybit.py
+++ b/freqtrade/exchange/bybit.py
@@ -1,7 +1,7 @@
 """ Bybit exchange subclass """
 import logging
 from datetime import datetime
-from typing import Any, Dict, List, Optional, Tuple, Union
+from typing import Any, Dict, List, Optional, Tuple
 
 from freqtrade.constants import BuySell
 from freqtrade.enums import MarginMode, TradingMode