diff --git a/freqtrade/exchange/exchange.py b/freqtrade/exchange/exchange.py
index b3da57d20..c41a84450 100644
--- a/freqtrade/exchange/exchange.py
+++ b/freqtrade/exchange/exchange.py
@@ -2018,8 +2018,8 @@ class Exchange:
             candle_limit = self.ohlcv_candle_limit(
                 timeframe, candle_type=candle_type, since_ms=since_ms)
 
-            if candle_type != CandleType.SPOT:
-                params.update({'price': candle_type})
+            if candle_type and candle_type != CandleType.SPOT:
+                params.update({'price': candle_type.value})
             if candle_type != CandleType.FUNDING_RATE:
                 data = await self._api_async.fetch_ohlcv(
                     pair, timeframe=timeframe, since=since_ms,
diff --git a/tests/exchange/test_binance.py b/tests/exchange/test_binance.py
index ef5cb1240..75aaa0081 100644
--- a/tests/exchange/test_binance.py
+++ b/tests/exchange/test_binance.py
@@ -5,7 +5,7 @@ from unittest.mock import MagicMock, PropertyMock
 import ccxt
 import pytest
 
-from freqtrade.enums import MarginMode, TradingMode
+from freqtrade.enums import CandleType, MarginMode, TradingMode
 from freqtrade.exceptions import DependencyException, InvalidOrderException, OperationalException
 from tests.conftest import get_mock_coro, get_patched_exchange, log_has_re
 from tests.exchange.test_exchange import ccxt_exceptionhandlers
@@ -542,7 +542,7 @@ def test__set_leverage_binance(mocker, default_conf):
 
 
 @pytest.mark.asyncio
-@pytest.mark.parametrize('candle_type', ['mark', ''])
+@pytest.mark.parametrize('candle_type', [CandleType.MARK, ''])
 async def test__async_get_historic_ohlcv_binance(default_conf, mocker, caplog, candle_type):
     ohlcv = [
         [
diff --git a/tests/exchange/test_exchange.py b/tests/exchange/test_exchange.py
index 673dc7594..b07892f72 100644
--- a/tests/exchange/test_exchange.py
+++ b/tests/exchange/test_exchange.py
@@ -2339,7 +2339,8 @@ async def test__async_kucoin_get_candle_history(default_conf, mocker, caplog):
     for _ in range(3):
         with pytest.raises(DDosProtection, match=r'429 Too Many Requests'):
             await exchange._async_get_candle_history(
-                "ETH/BTC", "5m", (arrow.utcnow().int_timestamp - 2000) * 1000, count=3)
+                "ETH/BTC", "5m", CandleType.SPOT,
+                since_ms=(arrow.utcnow().int_timestamp - 2000) * 1000, count=3)
     assert num_log_has_re(msg, caplog) == 3
 
     caplog.clear()
@@ -2355,7 +2356,8 @@ async def test__async_kucoin_get_candle_history(default_conf, mocker, caplog):
         for _ in range(3):
             with pytest.raises(DDosProtection, match=r'429 Too Many Requests'):
                 await exchange._async_get_candle_history(
-                    "ETH/BTC", "5m", (arrow.utcnow().int_timestamp - 2000) * 1000, count=3)
+                    "ETH/BTC", "5m", CandleType.SPOT,
+                    (arrow.utcnow().int_timestamp - 2000) * 1000, count=3)
         # Expect the "returned exception" message 12 times (4 retries * 3 (loop))
         assert num_log_has_re(msg, caplog) == 12
         assert num_log_has_re(msg2, caplog) == 9