diff --git a/freqtrade/exchange/exchange.py b/freqtrade/exchange/exchange.py
index ea6bcb29f..ed7918b36 100644
--- a/freqtrade/exchange/exchange.py
+++ b/freqtrade/exchange/exchange.py
@@ -541,7 +541,7 @@ class Exchange:
                                                         DEFAULT_AMOUNT_RESERVE_PERCENT)
         amount_reserve_percent = (
           amount_reserve_percent / (1 - abs(stoploss)) if abs(stoploss) != 1 else 1.5
-        )     
+        )
         # it should not be more than 50%
         amount_reserve_percent = max(min(amount_reserve_percent, 1.5), 1)
 
diff --git a/tests/exchange/test_exchange.py b/tests/exchange/test_exchange.py
index 4531bf816..27f4d0db9 100644
--- a/tests/exchange/test_exchange.py
+++ b/tests/exchange/test_exchange.py
@@ -432,7 +432,10 @@ def test_get_min_pair_stake_amount_real_data(mocker, default_conf) -> None:
         PropertyMock(return_value=markets)
     )
     result = exchange.get_min_pair_stake_amount('ETH/BTC', 0.020405, stoploss)
-    assert round(result, 8) == round(max(0.0001, 0.001 * 0.020405) * (1+0.05) / (1-abs(stoploss)), 8)
+    assert round(result, 8) == round(
+        max(0.0001, 0.001 * 0.020405) * (1+0.05) / (1-abs(stoploss)),
+        8
+    )
 
 
 def test_set_sandbox(default_conf, mocker):