diff --git a/freqtrade/optimize/hyperopt.py b/freqtrade/optimize/hyperopt.py
index 655e42ba6..320f7d3cb 100644
--- a/freqtrade/optimize/hyperopt.py
+++ b/freqtrade/optimize/hyperopt.py
@@ -460,7 +460,7 @@ class Hyperopt:
             'total_profit': total_profit,
         }
 
-        def _calculate_results_metrics(self, backtesting_results: DataFrame) -> Dict:
+    def _calculate_results_metrics(self, backtesting_results: DataFrame) -> Dict:
         return {
             'trade_count': len(backtesting_results.index),
             'wins': len(backtesting_results[backtesting_results.profit_percent > 0]),