diff --git a/freqtrade/commands/arguments.py b/freqtrade/commands/arguments.py
index f72164675..191f07910 100755
--- a/freqtrade/commands/arguments.py
+++ b/freqtrade/commands/arguments.py
@@ -69,7 +69,8 @@ ARGS_CONVERT_DATA_TRADES = ["pairs", "format_from_trades", "format_to", "erase",
 ARGS_CONVERT_DATA = ["pairs", "format_from", "format_to", "erase", "exchange"]
 ARGS_CONVERT_DATA_OHLCV = ARGS_CONVERT_DATA + ["timeframes", "trading_mode", "candle_types"]
 
-ARGS_CONVERT_TRADES = ["pairs", "timeframes", "exchange", "dataformat_ohlcv", "dataformat_trades"]
+ARGS_CONVERT_TRADES = ["pairs", "timeframes", "exchange", "dataformat_ohlcv", "dataformat_trades",
+                       "trading_mode"]
 
 ARGS_LIST_DATA = ["exchange", "dataformat_ohlcv", "pairs", "trading_mode", "show_timerange"]
 
diff --git a/freqtrade/data/converter/trade_converter.py b/freqtrade/data/converter/trade_converter.py
index 0e5050a05..1c8327ec3 100644
--- a/freqtrade/data/converter/trade_converter.py
+++ b/freqtrade/data/converter/trade_converter.py
@@ -99,8 +99,6 @@ def convert_trades_to_ohlcv(
     from freqtrade.data.history.idatahandler import get_datahandler
     data_handler_trades = get_datahandler(datadir, data_format=data_format_trades)
     data_handler_ohlcv = get_datahandler(datadir, data_format=data_format_ohlcv)
-    if not pairs:
-        pairs = data_handler_trades.trades_get_pairs(datadir)
 
     logger.info(f"About to convert pairs: '{', '.join(pairs)}', "
                 f"intervals: '{', '.join(timeframes)}' to {datadir}")