another minor fix for kraken
another minor fix for kraken

tritoanst/ccxt,ccxt/ccxt,aiueogawa/ccxt,thijstriemstra/ccxt,ccxt/ccxt,tritoanst/ccxt,ccxt/ccxt,ccxt/ccxt,ccxt/ccxt,thijstriemstra/ccxt,thijstriemstra/ccxt,aiueogawa/ccxt,tritoanst/ccxt,aiueogawa/ccxt,thijstriemstra/ccxt,aiueogawa/ccxt,tritoanst/ccxt