diff --git a/freqtrade/optimize/hyperopt.py b/freqtrade/optimize/hyperopt.py
index 929debc86..bf5b70e14 100644
--- a/freqtrade/optimize/hyperopt.py
+++ b/freqtrade/optimize/hyperopt.py
@@ -73,9 +73,9 @@ class Hyperopt(Backtesting):
 
         # Assign loss function
         if self.config.get('loss_function', 'legacy') == 'legacy':
-            self.calculate_loss = hyperopt_loss_legacy
+            self.calculate_loss = hyperopt_loss_legacy  # type: ignore
         elif self.config.get('loss_function', 'sharpe') == 'sharpe':
-            self.calculate_loss = hyperopt_loss_sharpe
+            self.calculate_loss = hyperopt_loss_sharpe  # type: ignore
         elif (self.config['loss_function'] == 'custom' and
               hasattr(self.custom_hyperopt, 'hyperopt_loss_custom')):
             self.calculate_loss = self.custom_hyperopt.hyperopt_loss_custom  # type: ignore
diff --git a/freqtrade/tests/optimize/test_hyperopt.py b/freqtrade/tests/optimize/test_hyperopt.py
index 88d7de39c..aae3405ad 100644
--- a/freqtrade/tests/optimize/test_hyperopt.py
+++ b/freqtrade/tests/optimize/test_hyperopt.py
@@ -302,7 +302,7 @@ def test_loss_calculation_has_limited_profit(hyperopt_results) -> None:
     under = hyperopt_loss_legacy(results_under, 600)
     assert over < correct
     assert under > correct
-    
+
 
 def test_sharpe_loss_prefers_higher_profits(hyperopt_results) -> None:
     results_over = hyperopt_results.copy()