diff --git a/freqtrade/freqtradebot.py b/freqtrade/freqtradebot.py
index 2f4803cc5..4ec01cb60 100644
--- a/freqtrade/freqtradebot.py
+++ b/freqtrade/freqtradebot.py
@@ -209,6 +209,7 @@ class FreqtradeBot:
         Calculate stake amount for the trade
         :return: float: Stake amount
         """
+        stake_amount: Optional[float]
         if self.edge:
             stake_amount = self.edge.stake_amount(
                 pair,