diff --git a/freqtrade/commands/arguments.py b/freqtrade/commands/arguments.py
index b0da8fa9d..5473e95e1 100755
--- a/freqtrade/commands/arguments.py
+++ b/freqtrade/commands/arguments.py
@@ -67,8 +67,7 @@ ARGS_BUILD_STRATEGY = ["user_data_dir", "strategy", "template"]
 
 ARGS_CONVERT_DATA = ["pairs", "format_from", "format_to", "erase", "exchange"]
 
-ARGS_CONVERT_DATA_OHLCV = ARGS_CONVERT_DATA + ["timeframes", "trading_mode",
-                                               "candle_types"]
+ARGS_CONVERT_DATA_OHLCV = ARGS_CONVERT_DATA + ["timeframes", "trading_mode", "candle_types"]
 
 ARGS_CONVERT_TRADES = ["pairs", "timeframes", "exchange", "dataformat_ohlcv", "dataformat_trades"]
 
diff --git a/freqtrade/commands/cli_options.py b/freqtrade/commands/cli_options.py
index 08283430e..0787bdc6b 100755
--- a/freqtrade/commands/cli_options.py
+++ b/freqtrade/commands/cli_options.py
@@ -381,7 +381,7 @@ AVAILABLE_CLI_OPTIONS = {
     ),
     "candle_types": Arg(
         '--candle-types',
-        help='Select candle type to use',
+        help='Select candle type to convert. Defaults to all available types.',
         choices=[c.value for c in CandleType],
         nargs='+',
     ),