diff --git a/freqtrade/optimize/backtesting.py b/freqtrade/optimize/backtesting.py
index 5dc1c3a3d..a6f7dc93c 100644
--- a/freqtrade/optimize/backtesting.py
+++ b/freqtrade/optimize/backtesting.py
@@ -68,7 +68,7 @@ def backtest(stake_amount: float, processed: Dict[str, DataFrame],
              max_open_trades: int = 0, realistic: bool = True) -> DataFrame:
     """
     Implements backtesting functionality
-    :param config: config to use
+    :param stake_amount: btc amount to use for each trade
     :param processed: a processed dictionary with format {pair, data}
     :param max_open_trades: maximum number of concurrent trades (default: 0, disabled)
     :param realistic: do we try to simulate realistic trades? (default: True)