diff --git a/freqtrade/persistence/trade_model.py b/freqtrade/persistence/trade_model.py
index 62e2e2a7f..a05eb7409 100644
--- a/freqtrade/persistence/trade_model.py
+++ b/freqtrade/persistence/trade_model.py
@@ -99,6 +99,10 @@ class Order(ModelBase):
     def safe_filled(self) -> float:
         return self.filled if self.filled is not None else self.amount or 0.0
 
+    @property
+    def safe_cost(self) -> float:
+        return self.cost or 0.0
+
     @property
     def safe_remaining(self) -> float:
         return (
diff --git a/tests/strategy/strats/broken_strats/broken_futures_strategies.py b/tests/strategy/strats/broken_strats/broken_futures_strategies.py
index 7e6955d37..bb7ce2b32 100644
--- a/tests/strategy/strats/broken_strats/broken_futures_strategies.py
+++ b/tests/strategy/strats/broken_strats/broken_futures_strategies.py
@@ -7,6 +7,7 @@ from datetime import datetime
 
 from pandas import DataFrame
 
+from freqtrade.persistence.trade_model import Order
 from freqtrade.strategy.interface import IStrategy
 
 
@@ -35,7 +36,7 @@ class TestStrategyImplementBuyTimeout(TestStrategyNoImplementSell):
     def populate_exit_trend(self, dataframe: DataFrame, metadata: dict) -> DataFrame:
         return super().populate_exit_trend(dataframe, metadata)
 
-    def check_buy_timeout(self, pair: str, trade, order: dict,
+    def check_buy_timeout(self, pair: str, trade, order: Order,
                           current_time: datetime, **kwargs) -> bool:
         return False
 
@@ -44,6 +45,6 @@ class TestStrategyImplementSellTimeout(TestStrategyNoImplementSell):
     def populate_exit_trend(self, dataframe: DataFrame, metadata: dict) -> DataFrame:
         return super().populate_exit_trend(dataframe, metadata)
 
-    def check_sell_timeout(self, pair: str, trade, order: dict,
+    def check_sell_timeout(self, pair: str, trade, order: Order,
                            current_time: datetime, **kwargs) -> bool:
         return False
diff --git a/tests/strategy/strats/strategy_test_v3.py b/tests/strategy/strats/strategy_test_v3.py
index 6f5ff573b..2d5121403 100644
--- a/tests/strategy/strats/strategy_test_v3.py
+++ b/tests/strategy/strats/strategy_test_v3.py
@@ -197,7 +197,7 @@ class StrategyTestV3(IStrategy):
 
         if current_profit < -0.0075:
             orders = trade.select_filled_orders(trade.entry_side)
-            return round(orders[0].cost, 0)
+            return round(orders[0].safe_cost, 0)
 
         return None