diff --git a/freqtrade/optimize/backtesting.py b/freqtrade/optimize/backtesting.py
index 5e1e9b48a..315b3b9db 100644
--- a/freqtrade/optimize/backtesting.py
+++ b/freqtrade/optimize/backtesting.py
@@ -442,10 +442,6 @@ class Backtesting:
                 # Worst case: price ticks tiny bit above open and dives down.
                 stop_rate = row[OPEN_IDX] * (1 - side_1 * abs(
                     (trade.stop_loss_pct or 0.0) / leverage))
-                if is_short:
-                    assert stop_rate > row[LOW_IDX]
-                else:
-                    assert stop_rate < row[HIGH_IDX]
 
             # Limit lower-end to candle low to avoid exits below the low.
             # This still remains "worst case" - but "worst realistic case".
diff --git a/pyproject.toml b/pyproject.toml
index 81ab50d40..c3ca9e1b0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -68,7 +68,7 @@ target-version = "py38"
 extend-select = [
   "C90",    # mccabe
   # "N",    # pep8-naming
-  "UP",   # pyupgrade
+  "UP",     # pyupgrade
   "TID",    # flake8-tidy-imports
   # "EXE",  # flake8-executable
   "YTT",    # flake8-2020