diff --git a/freqtrade/optimize/hyperopt_loss_sortino_daily.py b/freqtrade/optimize/hyperopt_loss_sortino_daily.py
index 891e2bf1c..c02f88434 100644
--- a/freqtrade/optimize/hyperopt_loss_sortino_daily.py
+++ b/freqtrade/optimize/hyperopt_loss_sortino_daily.py
@@ -39,7 +39,8 @@ class SortinoHyperOptLossDaily(IHyperOptLoss):
             results['profit_percent'] - slippage_per_trade_ratio
 
         # create the index within the min_date and end max_date
-        t_index = date_range(start=min_date, end=max_date, freq=resample_freq)
+        t_index = date_range(start=min_date, end=max_date, freq=resample_freq,
+                             normalize=True)
 
         sum_daily = (
             results.resample(resample_freq, on='close_time').agg(