diff --git a/freqtrade/exchange/okx.py b/freqtrade/exchange/okx.py
index fe1c94017..6792c2cba 100644
--- a/freqtrade/exchange/okx.py
+++ b/freqtrade/exchange/okx.py
@@ -78,7 +78,8 @@ class Okx(Exchange):
             raise DDosProtection(e) from e
         except (ccxt.NetworkError, ccxt.ExchangeError) as e:
             raise TemporaryError(
-                f'Error in additional_exchange_init due to {e.__class__.__name__}. Message: {e}') from e
+                f'Error in additional_exchange_init due to {e.__class__.__name__}. Message: {e}'
+                ) from e
         except ccxt.BaseError as e:
             raise OperationalException(e) from e