diff --git a/freqtrade/exchange/exchange.py b/freqtrade/exchange/exchange.py
index cea7f57ec..600a1d78c 100644
--- a/freqtrade/exchange/exchange.py
+++ b/freqtrade/exchange/exchange.py
@@ -2736,15 +2736,15 @@ class Exchange:
         timeframe = self._ft_has['mark_ohlcv_timeframe']
         timeframe_ff = self._ft_has.get('funding_fee_timeframe',
                                         self._ft_has['mark_ohlcv_timeframe'])
+        mark_price_type = CandleType.from_string(self._ft_has["mark_ohlcv_price"])
 
         if not close_date:
             close_date = datetime.now(timezone.utc)
         since_ms = int(timeframe_to_prev_date(timeframe, open_date).timestamp()) * 1000
 
-        mark_comb: PairWithTimeframe = (
-            pair, timeframe, CandleType.from_string(self._ft_has["mark_ohlcv_price"]))
-
+        mark_comb: PairWithTimeframe = (pair, timeframe, mark_price_type)
         funding_comb: PairWithTimeframe = (pair, timeframe_ff, CandleType.FUNDING_RATE)
+
         candle_histories = self.refresh_latest_ohlcv(
             [mark_comb, funding_comb],
             since_ms=since_ms,