diff --git a/freqtrade/commands/data_commands.py b/freqtrade/commands/data_commands.py
index 33069885a..d3600e3ef 100644
--- a/freqtrade/commands/data_commands.py
+++ b/freqtrade/commands/data_commands.py
@@ -8,7 +8,7 @@ from freqtrade.constants import DATETIME_PRINT_FORMAT, DL_DATA_TIMEFRAMES, Confi
 from freqtrade.data.converter import (convert_ohlcv_format, convert_trades_format,
                                       convert_trades_to_ohlcv)
 from freqtrade.data.history import download_data_main
-from freqtrade.enums import RunMode, TradingMode
+from freqtrade.enums import CandleType, RunMode, TradingMode
 from freqtrade.exceptions import OperationalException
 from freqtrade.exchange import timeframe_to_minutes
 from freqtrade.resolvers import ExchangeResolver
@@ -69,6 +69,7 @@ def start_convert_trades(args: Dict[str, Any]) -> None:
         datadir=config['datadir'], timerange=timerange, erase=bool(config.get('erase')),
         data_format_ohlcv=config['dataformat_ohlcv'],
         data_format_trades=config['dataformat_trades'],
+        candle_type=config.get('candle_type_def', CandleType.SPOT)
     )
 
 
diff --git a/freqtrade/data/converter/trade_converter.py b/freqtrade/data/converter/trade_converter.py
index bd4efb77e..117f65bc6 100644
--- a/freqtrade/data/converter/trade_converter.py
+++ b/freqtrade/data/converter/trade_converter.py
@@ -88,10 +88,10 @@ def convert_trades_to_ohlcv(
     timeframes: List[str],
     datadir: Path,
     timerange: TimeRange,
-    erase: bool = False,
-    data_format_ohlcv: str = 'feather',
-    data_format_trades: str = 'feather',
-    candle_type: CandleType = CandleType.SPOT
+    erase: bool,
+    data_format_ohlcv: str,
+    data_format_trades: str,
+    candle_type: CandleType,
 ) -> None:
     """
     Convert stored trades data to ohlcv data
diff --git a/freqtrade/data/history/history_utils.py b/freqtrade/data/history/history_utils.py
index ff6c2561d..27e229973 100644
--- a/freqtrade/data/history/history_utils.py
+++ b/freqtrade/data/history/history_utils.py
@@ -529,6 +529,7 @@ def download_data_main(config: Config) -> None:
                 datadir=config['datadir'], timerange=timerange, erase=bool(config.get('erase')),
                 data_format_ohlcv=config['dataformat_ohlcv'],
                 data_format_trades=config['dataformat_trades'],
+                candle_type=config.get('candle_type_def', CandleType.SPOT),
             )
         else:
             if not exchange.get_option('ohlcv_has_history', True):