diff --git a/freqtrade/exchange/kraken.py b/freqtrade/exchange/kraken.py
index 6a033f133..8cec2500e 100644
--- a/freqtrade/exchange/kraken.py
+++ b/freqtrade/exchange/kraken.py
@@ -86,6 +86,8 @@ class Kraken(Exchange):
         """
         Creates a stoploss market order.
         Stoploss market orders is the only stoploss type supported by kraken.
+        TODO: investigate if this can be combined with generic implementation
+              (careful, prices are reversed)
         """
         params = self._params.copy()