diff --git a/freqtrade/strategy/interface.py b/freqtrade/strategy/interface.py
index 68e0a7b37..353ae64b4 100644
--- a/freqtrade/strategy/interface.py
+++ b/freqtrade/strategy/interface.py
@@ -357,13 +357,13 @@ class IStrategy(ABC):
         # Check if time matches and current rate is above threshold
         trade_dur = (current_time.timestamp() - trade.open_date.timestamp()) / 60
 
-        # Get highest entry in ROI dict where key >= trade-duration
-        roi_entry = max(list(filter(lambda x: trade_dur >= x, self.minimal_roi.keys())))
+        # Get highest entry in ROI dict where key <= trade-duration
+        roi_list = list(filter(lambda x: x <= trade_dur, self.minimal_roi.keys()))
+        if not roi_list:
+            return False
+        roi_entry = max(roi_list)
         threshold = self.minimal_roi[roi_entry]
-        if current_profit > threshold:
-            return True
-
-        return False
+        return current_profit > threshold
 
     def tickerdata_to_dataframe(self, tickerdata: Dict[str, List]) -> Dict[str, DataFrame]:
         """